jscrane / PSU

Software-controlled variable-voltage power supply with current and power monitoring

View this project on CADLAB.io.

PSU

Software-controlled variable-voltage power supply with current and power monitoring.

Features:

• Common voltages preset through web interface (In Progress)
• TFT LCD to display output voltage and current
• Digital Potentiometer for software-controlled adjustment (TODO)

Hardware

Display hardware as WifiWeatherGuy:

• Wemos D1 Mini
• PCB-mounted push switch
• 1.8" TFT LCD display
• v3 PCB (with pin headers)

PSU hardware:

• LM317 variable voltage regulator
• INA219 voltage and current sensor
• X9C103P digital potentiometer
• Old laptop transformer (19v)

Software

• Arduino 1.8.x
• Arduino/ESP8266 2.7.1
• ArduinoJson 6.15.1
• TFT_eSPI 2.2.8
• Adafruit_INA219 1.0.4
• Arduino-X9C 0.9.0
• SimpleTimer
• Stator