Controller of the engraving machine
Embedded Systems & Microcontrollers
Granite engraver, based on Stm32f446
Stand for calibrated liquefied gas flow
Embedded Systems & Microcontrollers
Controller with indication, has the ability to connect GSM, GPS, WiFi, RS485(x2), RS232.
Such functionality has been added with the prospect of transforming the board into a monitoring system for liquefied gas, both for mobile and stationary…
0
302
BMS-1cell
Embedded Systems & Microcontrollers
single cell controller LiIon or LiFePo4 for 20+ amp-hours, functions - voltage/temperature monitoring, passive balancing by average value, status indication Number of cells connected in series up to 512, a special communication protocol has been…
0
496
Power supply of the device
Embedded Systems & Microcontrollers
4 batteries in a 2S2P configuration, 40 Wh,
outputs 2*9V 0.5A; 5V 3A; 5V 1A with low noise level
hardware charge control,
software via I2C - on/off outputs, % discharge, current, voltage, temperature
RF-button
Embedded Systems & Microcontrollers
Radio button, 2.4GHz ISM, powered by a 50 mAh lithium-polymer battery, USB-micro charging
Client reviews
Schematic and PCB design
90 USD
Pavlo helped implement the scheme from scratch. He also developed the printed circuit board.
4.8
The project was not completed. The freelancer initially reached out and discussed the details, but ultimately the work was not finished. I did not receive a final result that could be used. Because of this, the project had to be closed as uncompleted. Communication was normal, but there was no actual execution of the task.
3.5
Stm32 + can + rs485 + hx711
45 USD
The work was done professionally and quickly. I recommend collaboration.
5.0
Pavlo seemed competent at first, raised the fee but it did not meet the technical requirements. After a brief discussion, he agreed to redo it, but after that, he stopped responding. In the end, he did not complete the order.
0.5
Development of a solution for reading firmware from the STC microcontroller
Personal
16 USD
Thank you for the cooperation
A responsible person, I recommend for collaboration
A responsible person, I recommend for collaboration
5.0
Excellent specialist, fast work, competent, good feedback, we will continue to work further!
5.0
Our collaboration with Pavlo was productive. A lot of nerves went into creating the software for the controller. But Pavlo overcame it, and our equipment will be able to function in the future.
5.0
Preliminary consultation on device development
Personal
157 USD
Everything is great. The freelancer successfully completed the assigned task.
5.0
MDB board
Personal
135 USD
all good. there was a moment - everything was agreed
5.0
Development of the board
Personal
45 USD
Everything is great. Thank you. I recommend.
5.0
Analysis and correction of a C program for STM32
Personal
45 USD
Thank you for the promptness and feedback on each issue
5.0
Everything went great, I recommend the freelancer
5.0
A reliable and very competent performer - I recommend to everyone!
5.0
Everything is great, Pavlo knows his stuff
5.0
Design of the heating plate
Personal
31 USD
Everything is great! Fast and reliable! I recommend to everyone!