Pcb soldering temperaturepekerjaan

Privet Viktor, projekt chtoby peredelat pcb lcd, tak kak est izmenenija v mcu i pinah.

I am looking for an experienced Electronics Engineer, well-versed in using Altium Designer, for a series of projects that demand proficiency in a wide array of electronics, specifically focusing on Microcontroller integration, PCB layout and USB connectivity. Key Aspects: - PCB Layout design - Microcontroller implementation - USB Connectivity solutions Additional Requirements: - Expertise in Circuit design - Experience in selecting suitable electronic components - Signal analysis knowledge - Ability to conduct thorough testing procedures This project demands an adept understanding of electronic systems and circuitry meant for consumer electronics. Candidates with a solid track record in crafting and refining consumer electronic designs are strongly preferred. Your task ...

I'm looking for a proficient Matlab programmer with expertise in chemical engineering simulations to develop a comprehensive model for a Plug Flow Reactor (PFR). My goal is to analyze the conversion of reactants, product yield, and overall reactor efficiency, focusing on temperature and pressure as critical parameters. Key Project Deliverables: - Establish the PFR model in Matlab. - Integrate temperature and pressure variables using 2-D pseudo homogeneous model. - Calculate reactant conversion, yield, and efficiency. Ideal Candidate: - Proficient in Matlab coding. - Solid background in chemical engineering, specifically reactor design and modeling. - Understanding of PFR kinetics and mass-energy balances. - Ability to interpret simulation results for optimization. I ...

I need a proficient Matlab Simulink professional to simulate the current production in a semi-truck's solid oxide fuel cell. This should take into account multiple variables, specifically: - Temperature - Pressure - Fuel flow rate These should be varied at high levels in the simulation. With a requirement for medium precision, the model should sufficiently represent the real-world scenario without too much granularity. The goal is to understand how these variables affect the current production. The ideal candidate should have a strong background in thermodynamics, system simulations, and Matlab Simulink. Experience in solid oxide fuel cells and vehicular simulations would be a significant advantage.

I'm seeking an experienced PCB designer to develop a custom ATSAMD21 Micro PCB board. - A USB interface, specifically pin header for most GPIO and USB D lines. - 10+ GPIO pins required for this project. The ideal candidate should have prior experience working with ATSAMD21 Micro PCB boards as well as an understanding of USB interface technology. Proficiency in board design and a keen eye for detail will be crucial for success in this job.

...specifically focusing on issues concerning its design and operation. The system has been showing temperature control issues which needs immediate rectification. The ideal freelancer would: * Have significant experience in HVAC systems maintenance and improvement. * Have a deep understanding of heating and cooling temperature controls. * Have a proven track record of effectively diagnosing and solving similar issues. * Be a Professional Engineer The scope of the project will include, but is not limited to: * Thorough inspection of the HVAC design and temperatures control system. * Identification and rectification of temperature control issues. * Recommendations for maintaining optimal temperature control and project prevention of future issues. ...

I need an expert in Printed Circuit Board (PCB) design to assist me in manufacturing an electronic product that falls under the category of consumer electronics. Key Requirements: • Comprehensive knowledge in PCB design • Expertise in electronic product manufacturing • Experience in Consumer Electronics sector In particular, I am interested in those with a versatile portfolio, showcasing their ability to work with various complexity levels of PCB design. Although the specific complexity level of this project is not yet final, I am looking forward to discussing it during our project discussions. This project is an excellent opportunity for those who are passionate and experienced in the consumer electronics field. Let's bring our electronic...

...second will have a USB-C female to USB-C female connector. Key Requirements: - Design of two separate PCBs with USB-C connectors - One PCB should have a USB-C female to USB-C male connector - The other PCB should have a USB-C female to USB-C female connector - The male connector needs to be mounted at 90 degrees to the board - One female connector needs to be mounted at 90 degrees to the board - Both boards should support data transfer and device charging - Both boards when oriented should connect to each other with the 90 degree connectors forming a Z shape. - No additional components or features are required. Ideal Skills and Experience: - Proficiency in PCB design and layout - Experience with USB-C connectors and associated protocols - Ability to design for bo...

I'm looking for a skilled professional in Proteus and KiCad to assist with an electronic simulation and PCB design project. - I require assistance primarily with circuit design, schematic capture, and component selection and placement. - I already have specific electronic components in mind for this project, so I would need your expertise in helping me integrate these into the design. - The primary purpose of the electronic device I'm designing is for control and automation. Ideal Skills and Experience: - Proficiency in Proteus for electronic simulation - Proficiency in KiCad for PCB design - Experience with circuit design, schematic capture, and component selection and placement - Previous projects focusing on control and automation systems would be a bonus. ...

Update schematics, BOM and PCB. Create Panel.

I'm looking for a skilled programme...Ability to record and store data for further analysis and monitoring. - Fault Detection and Diagnosis: Ability to identify issues and provide possible causes for faults. - Motor Control: Efficient control over the motor for optimal operation. Desired Input and Output Parameters: - Pressure: The system should be able to monitor and potentially adjust pressure as needed. - Temperature: Capability to sense and react to temperature changes in the system. - Force: Ability to measure and control the amount of force applied by the press. Ideal candidates should have: - Experience with Allen Bradley PLC programming. - Strong understanding of hydraulic systems. - Previous work on similar automated systems. - Ability to optimize system perfo...

...industrial process controls via IoT to enhance energy efficiency and environmental management. Ideal Freelancer Qualifications: - Proven experience in IoT device development, preferably within an industrial setting - Familiarity with MQTT, AWS, LoRaWan and Dataloggers - Proven track record in energy and environmental management - Ability to deliver accurate, property-level data precision. - Full PCB layout, design and development Your advanced skills and experience in IoT developments will be pivotal in the success of this project. Let's revolutionize industrial process control together! To start the project and share the confidential materials we have, we require the signing of an NDA and we need proof of identity. Therefore, we would appreciate, if you please provide a...

We are working on a power converter board and looking for an expert in MCU stm32. We are using the stm32G474ret6 and having several issues that we are not being able to explain . The main issues are : startup state of MCU systick clock for hal_delay non functional Debugger resetting MCU in middle of operation code not stored in memory after powercycle . We are looking for somebody that is v...the stm32G474ret6 and having several issues that we are not being able to explain . The main issues are : startup state of MCU systick clock for hal_delay non functional Debugger resetting MCU in middle of operation code not stored in memory after powercycle . We are looking for somebody that is very used with stm32 MCU and know about electronic schematics and circuit for mcu integration on ...

...driving force behind a key industrial project, I'm currently in the market for a talented and meticulous PCB board developer. Your knowledge of the Internet of Things will be challenged, with the board needing to achieve: - Seamless Wireless connectivity - Comprehensive Sensor integration - Precise Data logging capabilities What's the end goal? Enhanced industrial monitoring. This board will lie at the heart of our operation, gathering and transmitting valuable, real-time data back to us for accurate monitoring and decision making. The must-have communication protocol for this board? WiFi. It's a non-negotiable, ensuring our board remains connected and efficient. If you're well versed in PCB design, experience with WiFi connected devices, and have ...

I'm in need of an Electronic Technician who can design a PCB board. I would provide the schematic diagram drawing, dimensions and a bill of material of all the components. All I need is the PCB design in a format that I could send to print. Simulation is a plus. Key Responsibilities: - Designing and developing the PCB board. Ideal Candidate: - Proficiency and experience in designing PCB boards. - Understanding of electronic devices and their components. Please include a detailed project proposal in your application.

...result was negative. 4. Do rounds  It will ask you to enter the current temperature for every Covid19 patient.  It will treat all the patients currently admitted to the hospital and print out each patient’s id and what is the recommended treatment 5. Discharge patient It will remove the patient from our system. Before we discharge a patient, we need to make sure that they have a negative PCR test result 6. Exit  Patient: Use the uml diagram above to create the abstract class.  Covid19Patient Use the uml diagram above to create the class  The treat method will return Paxlovid for patients over 59 who have a fever (temperature is over 36.5) otherwise, it will be fluids and Acetaminophen. Any patient who has a temperature over 40, regardless of age, should b...

I need Altium Designer expert to review the schematic/PCB, change the dielectric material to Rogers RO4003C, resolve DRC issues, correct any issue in the PCB , and ensure that the PCB is manufacturable. The designer should also generate the necessary files required for manufacturing and assembly. The PCB is already routed, but some modifications may be required. The PCB is a simple 6-layer PCB with 2 through-hole connectors, and all other components are surface-mount with 2 or 3 terminals. All changes should be documented in detail.

I'm looking for someone with the right skills to help me design a schematic and PCB layout for an electronic personal gadget. It's essentially a miniaturized, spherical device. Your work will be key to bringing this gadget to life. I need a skilled engineer to design the schematic and PCB layout for a compact video projector encased in a spherical, medical-grade silicone housing. Here are the specifications for the PCB: - The PCB should be circular. - It must have a maximum diameter of 15 millimeters. - The memory should be at least 10 MB, ideally 16 MB, to ensure ample storage. - The memory needs to be capable of supporting PDF files, though text files or images are acceptable alternatives. - The projector should be able to display content like a st...

I'm in need of an experienced electronic embedded system developer to create a cutting-edge blood pressure monitor medical device. The project involves schematic, pcb, firmware development, as well as algorithm creation, testing and monitoring. Additionally, the device should be able to interact with an Android app for display and control purposes. Key features: - Bluetooth connectivity: The device should be able to connect to other devices wirelessly. - Real-time monitoring: The device should provide continuous data so that users can monitor their blood pressure in real-time. The Android app should include: control device and viewing data with scheduling. Regulatory Standards: - CE (Conformité Européenne): The device must adhere to European standards for healt...

Construir un circuito PCB que: disponga de 2 entradas de audio stereo (Audio_In), para poder analizar y determinar continuamente, cual es el nivel máximo de volumen conjunto durante 30 segundos. Si dicho nivel máximo es SUPERIOR a un nivel establecido "manualmente" en el circuito (con un potenciómetro), entonces las salidas de audio (Audio_Out) del circuito deberían pasar a cero (Mute), en caso contrario las salidas de audio stereo deberían ser idénticas a las de entrada. (Audio_Out=Audio_In)

I'm seeking a skilled electronics engineer for the development of a basic single-layer PCB prototype. Here are the essentials: - This circuit creates a pulse amplitude modulated signal which is amplified at high power. The signal is genrated within the circuit so no user input is required. - This project has been worked on before and an added varible resistor and mosfet will be needed as well as the most important part which is power management which can be done with component selection or circuit alterations. - The purpose is a prototype development, which means you'll be instrumental in bringing my concept to life and preparing it for eventual manufacturing. - The PCB design will incorporate analog components, so expertise in working with these components is...

I'm looking for a skilled programmer with experience in using Grafana to visualize data. For this project, you'll be pulling data from a locally connected Allen Bradly Compactlogix PLC and creating web trends on a PC. The key data to be visualized includes: - Temperature - Pressure These will need to be monitored and analyzed on an average basis. In terms of data representation, I prefer a line graph. The ideal candidate will have experience in controlling PLCs, managing data and creating visuals with Grafana. Your insights and expertise on the most effective ways to represent and interpret the data will be highly valued. Strong communication skills and the willingness to ask clarifying questions are appreciated. Please include examples of previou...

We are seeking an experienced PCB designer to develop a custom printed circuit board for a Raspberry Pi 4 Model B application. The project requires integrating specific components and ensuring the design can be enclosed within a standard industrial box. The successful applicant must have experience with power management and GPIO pin utilization. Key Requirements: - Experience with Raspberry Pi designs and GPIO pin functions. - Ability to integrate electronic components such as 5V relays into the PCB with high precision. - Familiarity with standard industrial connectors and terminals. This project aims to create a highly functional and reliable hardware system. Only applicants with a strong track record in custom PCB designs and the ability to work to exact specifica...

We're looking for someone who can make a few changes to a PCB using Altium Designer and has experience and an education in electrical engineering. It would also be an advantage if you are familiar with the ESP32C3, creating circuits is not a problem for you, but it is also not a problem for you when troubleshooting, especially in the RF area. Out of discretion, we do not want to post the exact requirements publicly. However, we will send this to you in advance to discuss working hours and price if the requirements match your profile. Thank you

I require a professional with expertise in Electrical Engineering or more fields to design schematic and PCB layout for a mini videoprojector, and a sferic case which I can print.   What I need for this PCB:
- Must be round
- Must have max 15 milimeters diameter (1,5 centimeters)
- The components used should be good quality
- Must have minimum memory capacity of 10 MB (I think 16MB it's more than sufficient)
- The memory must support pdf or text (pdf preferably, but text is also ok or worst case images)
- This minimalistic videoprojector must have an option to project this pdf/text/img in any way (like a normal projector on walls, it's ok if will be smaller projecting final image; or like kids toys, where you are looking into a magnifier and see images)
- I pre...

I'm looking for an experienced mechatronic engineer specializing in health-related sensors and design. T...health-related sensors and design. The project will revolve around creating a system that includes a diabetes glucose reading feature. The perfect candidate for this project should possess: - Expertise in automation systems and control systems - Detailed knowledge on health-related biomedical sensors - Proficiency in designing tools for tracking vitals including heart rate, blood pressure, and body temperature - Utmost understanding in incorporating a diabetes glucose reading feature into the overall design. A background in healthcare-focused mechatronics would give you an added advantage. Please don't hesitate to get in touch if you have the right expertise for th...

As someone passionate about electronics, I am looking to create a PCB layout specifically for large, rectangular, tri-color LED display panels - a design that goes from scratch. Here’s exactly what I am looking for: Requirements: - PCB Design expertise with a keen eye for detail. - Handle the complete PCB layout design process, starting from scratch. - Apply knowledge of tri-color LED panel technology in PCB design. - Assist in producing a PCB layout tailored for large, rectangular shaped LED panels. Skills & Experience: - Experience in PCB design & layout. - Hands-on experience with LED technology, specifically tri-color panels. - Proven track record of designing PCB layouts from scratch. - Excellent understanding of var...

...place - as well as RS485 communication. Absolut main aspect is an accurate (in sense of stability, low noise and absolute value representation) K thermocouple element measurement. Two approaches are forseen - using the high precision MAX31856 as well as the AD8495 in conjunction with a 20-bit SAR and 24-bit SigDelt ADC. Apart from the ADC proposition the project comprisis of a full circuit and PCB creation. Additionaly also the needed firmware for the respective communication (over SPI) shall be properly implemented (well structured and with readable comments). Finally also testing should take please for measure the achievable performance of the proposed and implemented solutions. Please read carefully the attached project sheet with even more details. Looking forward to work...

Interface LPCXpresso Board for LPC11U68 with 1) ds18b20 temperature sensor 2) ad8232 heart rate sensor

I'm in need of a PCB design for prototyping purposes. The board's complexity is a double-layer one, and its dimensions are very small, up to 2 inches. The PCB design must be suitable for prototyping, so it should be well-structured, compact and efficient. Key details: - MCU: ESP32 - Interface: Wifi/Bluetooth - Number of sensors to be interfaced: 4 - Type: Prototyping - Complexity: Double-layer - Size: 40mm dia Ideal skills for this project: - PCB design experience, specifically in prototyping - Proficiency in designing double-layer boards - Ability to create compact and efficient designs - Familiarity with small form factor PCBs.

...smart and precision agriculture to improve crop yields. My main goal is precision, achieved through constant soil, crop, water, weed/bug and weather supervision, and it's where your expertise comes into play. Tasks: - Soil Analysis and Mapping: I need assistance with analyzing and mapping soil using the data collected from reports and field sensors. This requires a combination of moisture, temperature, and nutrient sensor data from the field and soil testing reports. - Crop Monitoring and Decision-making: This involves monitoring crop health and using the collected data to make informed decisions on crop management. - Weather Prediction and Analysis: You would be tasked to leverage data science to predict weather trends and analyze their potential impact on the farm. - ...

I'm looking for a seasoned electronics engineer to develop a circuit board with a microcontroller wit...power and addressable LEDs, with the design done using EasyEDA software to be fully manufactured by JLCPCB (or equivalent). The core functionality of this project focuses on power management. Your skills and expertise should include: - Comprehensive understanding of EasyEDA software (can take other suggestions) - Proven experience in multi-layer circuit board design - Extensive knowledge in PCB design for power management This project requires intricate knowledge of these areas, so please only bid if you're confident in your ability to deliver. Looking forward to working with experienced and dedicated specialists. Proven portfolio related to power management circui...

I need an artificial intelli...to train a U-Net model. The purpose of this model is to predict the average global temperature for the next 6 hours given specific latitude and longitude coordinates, as well as a specified time. This project falls into the category of weather forecasting, and although it's unclear whether historical temperature data are available for model training, the ideal candidate should be equipped to handle such data if provided. Key qualifications for this project include: - Proficient in training U-net models - Experience with weather-related AI projects - Ability to handle Net-CDF data - Familiarity with global temperature metrics. Your expertise will help in making informed predictions about global temperature, contributing ...

I am looking for a specialized electronics engineer with a proven track record in printed circuit board (PCB) design, specifically tailored to handle sensor signals. In particular, the PCB should receive WiFi-based signals from sensors monitoring temperature, pressure, and vibrations. The scope of the project is as follows: 1. **Sensor-PCB Communication:** The maximum distance between the sensors and the PCB would be less than 10 meters. A strong understanding of short-range wireless communication is essential. 2. **Durability:** The PCB design needs to prioritize durability. Please demonstrate past work in creating robust and long-lasting PCB designs. 3. **Equipment Performance Tracking:** The primary purpose of the sensor signals is ...

100 Tons Weighbridge controller PCB design with RFID

100 Tons Weighbridge controller PCB design with RFID

I'm looking to upgrade my current ESP8266 controller to an ESP32 C3 Mini controlle...Mini controller. I am primarily interested in freelancers with specific experience in this upgrade. Here's what I need: Requirement -1 : 1. Update existing Master Controller board based of ESP8266 to support ESP32 C3 IPEX/ (EasyEDA PCB design) 2. Retain GPIO connections and other circuits and components. 3. Ensure the position of LEDs, buttons and interfaces are as in current design 4. Ensure that the device supports handling loads upto 3A total without any heat with each port support upto 1 A Requirement -2 : 1. Redesign existing Zone Expander PCB board from Eagle to EasyEDA 2. Add LED Power indicator option 3. Ensure that the Expander handle upto 3A without any heating and ea...

Project 1 Run this code and get output. Show the output in a small video. The sample data is not downloadable. Find a way to download it or use any other sample data you have. Project 2 Anyone who know how to interface LPCXpresso Board for LPC11U68 and ad8232 heartrate sensor, ds18b20 temperature sensor.

I'm in need of a talented PCB designer who can assist in creating a simple but effective PCB for a power supply. Key Responsibilities: Need a Small PCB which will contain NodeMCU, 4 Relay, AC to DC 5v. This board is for home automation project which will connect through WIFI, RF and control all home appliances. Ideal Skills: - Proven experience in PCB design. - Understanding of basic power supply principles. - Proficiency in PCB layout softwares, like Altium or Eagle. This is a straightforward project suitable for a skilled PCB designer looking to take on a quick gig.

I'm in need of a PCB design. The primary purpose of this project is for prototyping a simple layout. Key Requirements: - Design a single-sided PCB layout - The size of the PCB should fit in the small area you see in the attached photo, so it’s a unique shape. - There will be two automotive LEDs that connect to the PCB, so 4 wires, however, the 2x ground works be best connected and then the positive for each light. I’m considering using a magnetic Pogo connector for the output and it would need 4 connections. You’ll see in the second image, the wiring is for an indicator/brake/running led. So the brake/running are connected and it works as such. The running light is a dimmed red LED, then when the brake is pressed the red light brightens...

...professional who can provide comprehensive training on ROMS (Regional Ocean Modeling System). This should include various aspects: - Key concepts of ROMS - How to effectively use the software - Enhancement of modeling skills Specifically, the training should focus on: - Grid creation - Performing ROMS modeling in the Pacific Ocean - Deriving results from specific marine data such as temperature, salinity, currents, among others The ideal candidate should have: - Prior experience in providing ROMS training - Profound understanding of marine data - Superior modeling skills - Hands-on experience with the Pacific Ocean's marine data. We are looking for people to teach ROMS. ROMS is already installed. We are looking for someone who will provide general train...

As a seasoned ESP or NODE MCU developer, I am seeking your expertise to integrate and transmit data using Bluetooth after power On. The sensors for which I need to integrate include Temperature, Humidity, PIR motion, Pressure, and an RTD (Resistance Temperature Detector). To elaborate: - Sensor Integration: You need to possess in-depth knowledge about different types of sensors, mainly Temperature, Humidity, PIR motion, Pressure, and RTD (Resistance Temperature Detector). Leveraging this knowledge, you shall efficiently integrate these sensors with the ESP or NODE MCU. - Relay Control: Based on the Bluetooth ADV data received from another ESP, your task includes performing actions such as Turning on and Turning off the relay. - Data Transmission: After the ...

...instrumentation technician, proficient in handling both electrical and temperature instruments. The hired professional will be responsible for: - Installing instruments: You'll need to get these instruments up and running in a seamless fashion. - Calibration of Instruments: Because accurate readings are essential for my business, your role will involve routine calibration. - Troubleshooting and repairs: You're the first person I'll call when something goes wrong, so I'm relying on your problem-solving skills to keep downtime to an absolute minimum. The instruments will be used for industrial automation purposes, so previous experience in this field would be highly beneficial. You'll have experience working with both electrical and temperature in...

I am looking for a skilled PCB designer to create a prototype that fits within a medium-sized, 2 to 4 inch space. This PCB should be tailored to contain an Arduino Mini and a 12V to 5V buck converter, with 3 pin and 2 pin JST GH connectors. The configuration of components on the PCB should follow a clustered arrangement to maximize space efficiency. This job does not require mass production capability at this time, with the primary focus being on creating a single prototype. Ideal candidates should have experience with Arduino components and compact PCB design.

I'm seeking an experienced hardware engineer to design a robust PCB which will fully support my Raspberry Pi 3 Model B+. This PCB is planned to be a part of a control system. The main requirements for the project are as follows: • Full Raspberry Pi 3 Model B+ compatibility support - Your design should take full advantage of all the features of this model. • Control system orientation - The PCB down the line will be used as a control system, all design decisions should keep this in mind. This project requires that the PCB has a 110/240 V input and have a 5V Output and 8 Relay Out of 10V. Some basic requirements for candidates: • Strong knowledge in Raspberry Pi and PCB design is preferred. • Prior experience with networking syste...

...3. Rated output voltage is 220-240 V. Stabilization is not needed, it is enough to simply limit the upper limit. The current is direct. 4. Temperature sensor for fan control and shutdown when overheated. 5. The rated power of the converter is 420 W. Peak - 600 W. 6. Type. I think that a regular non-isolated boost converter will not work, because it will require expensive transistors (or a lot in parallel). Options for bridge or flyback converters are needed. 7. Switch. So that you can turn off the converter without disconnecting the wires. 8. Connectors. At the input, you can use contact pads for soldering 4 sq. wires. mm, at the output - for soldering wire 1.5 sq. mm. Any CAD can be used. If desired, you can use MCUs of easily accessible series: AVR, STM, PIC. Thi...

...automation - Integrating and managing different smart devices within a home network Your work will mainly focus on smart thermostats, lighting systems, and security cameras. Specifically, you will need to implement the following functionalities for the smart thermostats: - **Temperature Scheduling**: The Python scripts should be able to automate and schedule temperature changes. - **Remote Control via Smartphone App**: The thermostats should be controllable via a smartphone application, allowing users to adjust the temperature remotely. - **Integration with Voice Assistants**: The smart thermostats should be able to interact with popular voice assistants like Google Assistant or Amazon Alexa. Your previous experience in developing similar home automation projects ...

I hope you are good. I have read your description carefully and understand everything. I’m Electronics engineer who have 25 year experience on analog design, renewable energy, power electronics, motor control, microcontroller coding and PCB design. I have used Arduino, PIC, MSP430, C2000 and STM32 for 8 years. I have developed several codes by using their IDE and compilers. I know all principles of them. And I can do microcontroller simulation by using Proteus. Proteus have microcontroller model and peripheral components to simulate the code. The code can be debugged by using COF file also. Simulation result is same with real time application.

...ideal candidate should have versatility in implementing AI algorithms on various platforms such as desktop computers, mobile devices and web browsers. The Learning data set: - MODIS csv daily fire hotspots over southeast asia since the year 2000 - MODIS NetCDF monthly burn scars over southeast asia since the year 2000 -ERA5 NetCDF daily meteorology included precipitation, maximum temperature, minimum temperature, relative humidity, plenary boundary layer hight, wind speed and direction. Key Project Requirement: - Real-time data processing: The AI system should be capable of predicting fire hotspot trends (date, Lon, Lat) in real-time, processing large amounts of MODIS data swiftly and accurately. Applicant's Profile: - Experience: Ideally, the freelancer should...

I need a single-layer PCB designed for a consumer electronics product. It involves the integration of sensors and a timer. Basically,, a very small circular pcb board that has 12 micro led lights. And all lights turn on when double tapping was detected, then last about 10 seconds then lights turned off. Using two 1.5v coin batteries. Just that, nothing less and nothing more. Oh, but it has to be very small. Approximately 30mmx30mm. Thank you Regards