|pcb design 12v on/off using bluetooth module
||I need a design of pcb board that allows 12v in and doesnt allow it out unless it recieves "on" to pass it or "off" to stop the current flow via bluetooth .
The board should allow the current up to 20 amps via [URL dibuang, sila log masuk untuk melihat] also should have a shut down button to be able to connect electricity if any problem occurs.
The components list should be ...
||Elektronik, Kejuruteraan Elektrik, Susun Atur PCB, Rekabentuk Produk, Reka Bentuk Litar
||Mar 20, 2018
||Mar 20, 20184h 1j
|Add current limiting function to amp meter
||I have an amp meter device that take a battery pack IN and OUT to ebike controller.
* The device was developed by a freelancer from here
The device monitors volts, amps, amp hours, watts...
I would like to add an option to set the number of max amp through the screen and that the device will limit the power coming from the battery to that amount.
The battery is capable of providi...
||Kejuruteraan, Elektronik, Mikropengawal, Kejuruteraan Elektrik, Susun Atur PCB
||Mar 13, 2018
||Mar 13, 2018Tamat
|welding machine - pulse mig
||I want a team / somebody who can develop a digital control pulse mig welding machine for me.
The output current should = 400 Amps
There should be CC/CV feature in that.
The Wire feeder motor should be rotary encoder based.
The smooth welding of Aluminum, SS & MS should be possible with that.
||Kejuruteraan, Elektronik, PLC & SCADA, Kejuruteraan Mekanikal, Kejuruteraan Elektrik
||Mar 4, 2018
||Mar 4, 2018Tamat
|Proteus - Digital and Analogue Electronics
||I have got a job that needs fixing.
Please only apply with a proposal if you have good writing skills (fluent English) + skilled in Proteus
You need to be good int these too : (Transistors - Diodes - Op-Amps)
||Kejuruteraan, Elektronik, Kejuruteraan Elektrik, Reka Bentuk Litar
||Mar 2, 2018
||Mar 2, 2018Tamat
|Build a AC and DC current monitor
||To be able to measure AC L1, L2, N & G. @ 120VAC max 50 amps 60hz. and 12VDC @ 20amps (max. 6 circuits). This information needs to be easier to read and be accessed via the internet. I would like to use an Arduino Uno, as I already own one, although I am open to other ideas.
I mostly need the parts list, the instructions and the code.
||Kejuruteraan, Elektronik, Mikropengawal, Kejuruteraan Elektrik, Arduino
||Feb 12, 2018
||Feb 12, 2018Tamat
|Built and ESC (Electric Speed Controller) and Remote Controller
we are trying to start a company and launching ECO-Mobility solutions for the cities. I am working on now in a Carbon Fiber high tech electric skateboard and we need some knowledge in ESC and Remote Controllers since we want to develop our own.
- ESC for two motors.
- Max currents allowed 80 Amps at 42 V
- Should be able to handle updates of firmware.
||Elektronik, Mikropengawal, Kejuruteraan Elektrik, Arduino, Reka Bentuk Litar
||Feb 11, 2018
||Feb 11, 2018Tamat
|Power point file revision, conversion, and rebranding
||The purpose of this project is to rebrand power point files under our new company name with new logo and website ([URL dibuang, sila log masuk untuk melihat]).
Copy all content, text and graphics to a fresh clean power point file, excluding certain objects, see picture files 1, 2 and 3. Pictures 1, 2 and 3 are to be EXCLUDED from your revised final produced product.
Any instance of the gent...
||Powerpoint, Pengeditan Foto, Bahasa Inggeris (AS)
||Feb 4, 2018
||Feb 4, 2018Tamat
|new website creation
||we have the website [URL dibuang, sila log masuk untuk melihat] - but we know its bad and need new maybe basicly as a shop like my friend: [URL dibuang, sila log masuk untuk melihat]
We sell and display our amps, feedback from clinets and so on .....
||Jan 21, 2018
||Jan 21, 2018Tamat
|Design a circuit and PCB for testing CN3082 battery charger IC
||We require an evaluation board to be designed to characterize the performance of a battery charger IC, the CN3082 from Consonance Electronics.
- Concurrent measurement of input and output voltages and currents, and voltage of temperature pin and charge status pin with resolution of 2 mV and 2 uA and accuracy of 5 mV and 5 uA, using an onboard multichannel ADC. To achieve t...
||Kejuruteraan Elektrik, Susun Atur PCB, Reka Bentuk Litar
||Dec 16, 2017
||Dec 16, 2017Tamat
|PLC Programmer to Monitor CT -- 2
I need some help to program a PLC ( [URL dibuang, sila log masuk untuk melihat] )
I need to connect 12 CT's to monitor power consumption and make data available in as modbus registers in PLC. Meaning I need you to program the PLC to read input from CT and save data in Modbus register in PLC so it can be read from modbus, please also consider conversion of the input of the CT ( eg vo...
||Elektronik, PLC & SCADA, Kejuruteraan Elektrik, Komunikasi
||Nov 27, 2017
||Nov 27, 2017Tamat
|ESP8266 30 AMPS Relay board ADC 712
||ESP8266 30 AMPS Relay board with ADC 712 monitoring
||Elektronik, Mikropengawal, Kejuruteraan Elektrik, Susun Atur PCB, Arduino
||Nov 23, 2017
|food truck - aerial view floor plan, diagram for electrical, plumbing, and propane gas lines
||Hi, I am designing a food truck. A shipping container will be mounted to the back of a cab and chassis truck, I have an aerial view floor plan that I will provide you with. The shipping container is 20 feet by 8 feet.
A view from each side on the outside will also be needed
I will also need the diagram for the electrical work. I have all the equipment that will go inside including voltage, amps ...
||CAD/CAM, Kejuruteraan Bangunan, Kejuruteraan Mekanikal, Kejuruteraan Elektrik, Kejuruteraan Struktur
||Nov 18, 2017
||Nov 18, 2017Tamat
|Analog circuit design
||I am looking for a person who has deep knowledge of analog circuit design, analog circuit analysis.
Frequency response, LCR measurement by analog circuit, low power consumption ( in micro amps) circuit design. Design, test, and create all documents for production.
||Kejuruteraan, Elektronik, Kejuruteraan Elektrik, Reka Bentuk Litar
||Nov 11, 2017
||Nov 11, 2017Tamat
|solidstate relay sourcing
||linear proportional (phase angle) controller
Ratings from 15 to 110 Amps @ 20-300 VAC
Simple 0-5 mAmps analogue Control Voltage
provide proportional AC power to a wide range of resistive loads
||Kejuruteraan, Elektronik, Mikropengawal, Kejuruteraan Elektrik, Reka Bentuk Litar
||Oct 25, 2017
||Oct 25, 2017Tamat
|SEO Improvement for Opencart based site
||I need some improvements made on my site - When using the tool at [URL dibuang, sila log masuk untuk melihat] I get errors in heading structure. The page I tested was [URL dibuang, sila log masuk untuk melihat]
||Oct 19, 2017
||Oct 19, 2017Tamat
|Modular Lithium Ion Battery pack
||Solution to build a 4 KWH hr battery pack with 4 modules of 1KWH.
Details - 48V, Peak Current 120 amps
Things to handle:
All modules are maintained at same voltage. If there is mismatch the system should raise alarm and shut down. ( Modules should not get damaged due to voltage mismatch). The load should get the required voltage and current.
||Elektronik, Mikropengawal, Kejuruteraan Elektrik, Susun Atur PCB
||Oct 8, 2017
||Oct 8, 2017Tamat
|Firmware Design of STM32 ARM Cortex Sensor PCB in C Compiled with GCC
||Firmware Design of STM32 ARM Cortex Sensor PCB in C Compiled with GCC
Project Objectives: – Understand elements of a small PCB design, sensor data and signals – Consultant to write and test firmware for said PCB.
Fully documented code required.
Target Price for Project: US$750 or less
– Signal Processing
– Circuit ...
||Mikropengawal, Susun Atur PCB, Arduino, Reka Bentuk Litar, Rekaan
||Sep 21, 2017
||Sep 21, 2017Tamat
|We need to developa SIGFOX transceiver sensor board which has a MCU -STM32L as well as a three axis accelerometer and two charging circuits , one for a solar panel and a 12 v battery souce. The board also needs to have a USB mini port for progrramming as
||We need to have a Sigfox / Lora board designer.
Murata is soon releasing a new RF module which will be capable of handling both LORA and [URL dibuang, sila log masuk untuk melihat] board design we need must include sensors such as a three axis accelrometer and be capable of measuring current / amps . The Murata board will likely have a STM32L MCU which is fine to embedd a MAC address. The board wi...
||Mikropengawal, Format & Susun Atur, Susun Atur PCB, Bluetooth Low Energy (BLE)
||Sep 16, 2017
||Sep 16, 2017Tamat
|SPICE circuit design of DC powerline communication circuit
||We want to a SPICE circuit design for simple, low data rate, DC powerline communications;
- 12 to 120 VDC (<5 amps)
- just 2 wires carry both power AND comms
- not twisted pair wires
- 100m cable runs
- low baud rates (9600 would be great!)
- low noise rural environment
- we'll use a protocol like NMEA - that repeats sentences... so lost data/sentences are OK
- happy to re...
||Elektronik, Kejuruteraan Elektrik, Susun Atur PCB, Arduino, Reka Bentuk Litar
||Sep 15, 2017
||Sep 15, 2017Tamat
|I would like to hire an Electronics Engineer
||Design a very simple and small circuit (pcb) for use as a 12-volt battery charger/battery back-up and hopefully based on the LTC1967 possibly using a pair of NDS8947 or equivalents. Only 3 connections: 12-volt (~14 DC) Power Supply In, ~13.5-volt+ out to battery under charge and ~13VDC+ to radio transmitter- Current draw capable of ~20 Amps+.
||Elektronik, Susun Atur PCB, Reka Bentuk Litar
||Aug 26, 2017
||Aug 26, 2017Tamat