Firmware Engineer
Janghan Engineers
South Korea
5. Compact Heat Supply Unit (District heating) control system- Atmega2560 (GPIO, ADC, DAC, TIMER, RTC, UART)- Objects: HWS system, HWS TCV valve (PID Control), HWS pump, Heat system, Heat TCV valve (PID Control), Heat VFD (PID Control), Heat pump, RS232, RS485 MODBUS4. VST (Variable speed self-tracking inline pump) SENSOR LESS VFD pump control system- Product released- Atmega2560 (GPIO, ADC, DAC, Timer, RTC, UART)- FreeRTOS for display- Objects: Alarm, 2~4VFDs (Sensor-less, Pump similarity law, PID Control), RS232, ZIGBEE, Log (SD Card)3. Booster Pump systems- Products released- Atmega2560 (GPIO, ADC, DAC, TIMER, RTC, UART)- Single VFD: Alarm, VFD (PID Control), 2~8Pumps, RS232, RS485 MODBUS- Full VFD: Alarm, 2~8VFDs (PID Control), RS232, RS485 MODBUS- Half Single: Alarm, 2VFDs (PID Control), 3~8Pumps, RS232, RS485 MODBUS- Half Full VFD: Alarm, 3~8VFDs (PID Control), RS232, RS485 MODBUS- Wireless Motor-Independent Half Full VFD: Alarm, 4~8VFDs (PID Control), ZIGBEE, RS232- STM32F429IG (GPIO, ADC, FMC, LTDC, RTC, UART, FreeRTOS)2. Smart server rack fan motor control system- Atmega328p (ADC, UART, PWM, Timer, GPIO, Encoder)- Objects: Fan Motor, Alarm, Serial communication (RS485), NTC (Temperature sensor), CT (Current sensor)1. Air Separator systems- Products released- Atmega2560 (ADC, DAC, RTC, GPIO, UART, SPI, TIMER, LCD, TOUCH)- Objects: Alarm, Drain valve, Feed valve, Make up water valve, Proportional Overflow valve (PID Control), Overflow valve, 1~2Pumps, Log (SD Card), RS232, RS485 MODBUS- STM32F429IG (GPIO, ADC, FMC, LTDC, RTC, UART, FreeRTOS)