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Danzall C.

@dcornelius7

5.0
8
4.9
4.9
100%

Firmware developer, Circuit design, PCB layout

$13 USD / 小时
・
的国旗
South Africa (3:06 下午)
・
加入于七月 26, 2022
$13 USD / 小时
・
I have 10 years experience designing and developing PCBs and 4 years experience designing and developing firmware for custom made PCBs with a focus on GSM based communication utilising Telit Quectel and Fibocom modules. Recent projects are as follows: GSM based AC energy & power measurement • Quectel M66 GSM module • ADE7945 energy measurement IC • STM32F072 M0 Cortex controller GSM based temperature and humidity measurement • Fibocom G510 GSM module • R5F100RCASP MCU • DHT11 temperature/humidity sensor GSM based asset tracker • Telit G865 GSM module • STM32F103RC M3 Cortex MCU • Ublox Neo8 GPS module MCU experience: AVR atmega range STM M0, M3 and M4 Silicon labs 8051 based IDE experience: Atmel studio STM Cube IDE Simplicity STM workbench Keil uVision SES PCB CAD experience: Altium Orcad Eagle Modules: ESP32 ESP8266 nRF51822 Arduino Uno DHT11
验证
准时
100%
预算内
100%
接受率
91%
重复聘用率
9%
Freelancer Electronics Engineers South Africa
查看所有Electronics Engineers在South Africa

文件夹

文件夹

12213803
This project monitors DC voltage and it's primary function is to report errors such as low voltage or over current scenarios via a capacitive touch screen, loads and threshold levels are set via the screen, connection between the screen and the relay controller is achieved by RS485 communication
12v load controller with RS485 WT32_SC01(ESP32S3) HMI
12208882
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
10703318
This project measure the flow of water and controls a motorized ball valve to regulate the amount of flow needed, a GSM module is used to send emails regarding water usage, the video depicts ball valve operation with simulated water flow(pulsed from ESP32)
Irrigation controller
10554704
Thingspeak data utilizing MAX6675 thermocouple
10549960
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
10446338
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
12213803
This project monitors DC voltage and it's primary function is to report errors such as low voltage or over current scenarios via a capacitive touch screen, loads and threshold levels are set via the screen, connection between the screen and the relay controller is achieved by RS485 communication
12v load controller with RS485 WT32_SC01(ESP32S3) HMI
12208882
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
A low cost, low count modem to interface to any PC to send AT commands. UART to USB bridge used is CH340t to facilitate PC communication and features a single cell Lion charging circuit to charge a backup battery in case main supply fails
SIM 800L based GSM modem
10703318
This project measure the flow of water and controls a motorized ball valve to regulate the amount of flow needed, a GSM module is used to send emails regarding water usage, the video depicts ball valve operation with simulated water flow(pulsed from ESP32)
Irrigation controller
10554704
Thingspeak data utilizing MAX6675 thermocouple
10549960
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
Utilizing STM32F091VC, GE865, NEO 7 and COG display this device is used to release the cable used to lock container doors and only releases the cable(opens doors) at pre configured locations in order to reduce cargo losses
STM32 based asset tracker
10446338
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
STM MCU with Telit GE865 GSM module and Ublox Neo7 GPS module
STM32F103RC based vehicle tracker
修改已保存
5.0 · 8 Reviews
评论
用户头像
Small program CAN-Bus project for STM32F042F6P6 • $40 USD
Good communication, great freelancer !!!
Krzysztof D.
@dvjcodec
•
的国旗
Darlowo，Poland
•
4 个月前
分享
D
Led PCB -- 2 • $26 USD
Great job from this freelancer ! [30 September, 2024] Great job from this freelancer !
Francois G.
@designdashtronix
•
的国旗
Montreal，Canada
•
4 个月前
分享
用户头像
Arduino code for liquid level monitoring and send data to mysql database for grafana visualisation • £110 GBP
Excellent work - was a pleasure working with. Thank you and look forward to working with you again
Alex L.
@alexlyon
•
的国旗
Bristol，United Kingdom
•
1 年前
分享
用户头像
STM32 with SIMCOM • €200 EUR
Professional very knowledge , highly recommended.
Florin Adrian M.
@mzk10k
•
的国旗
Madrid，Romania
•
1 年前
分享
用户头像
Small changes pcb and schematics on Altium Designer • €8 EUR
Danzall helped me to convert some Altium Designer files into EasyEda in very short time. I would work with him in future.
Harald B.
@haraldbregu
•
的国旗
Busto Arsizio，Italy
•
2 年前
分享
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