This project utilizes the Wemos D1 (ESP8266) microcontroller paired with INA226 current/voltage sensors (or any compatible INAxxx series) to provide precise, real-time measurements of electrical parameters across four independent channels.
Technical Specifications:
- Voltage Measurement Range: up to 36 V DC per channel
- Current Measurement Range: up to 13-15A per channel (when PCB traces are properly soldered (~0,3 mm) around 20A
- Sensor: INA226 (bidirectional current and voltage sensor with high accuracy)
- Microcontroller: Wemos D1 (ESP8266) for WiFi connectivity and data transmission
- Communication: Wireless data streaming via WiFi for remote dasboard monitoring and MQTT broker
- Applications: Multi-channel power consumption monitoring, load analysis, and energy management
| Parameter | Wert |
|---|---|
| Shunt-Widerstand | 2 mΩ |
| Maximalstrom | 20 A |
| Shuntspannung @ 20 A | 40 mV |
| Verlustleistung @ 20 A | 0.8 W |
| Current_LSB | 625 µA |
| Calibration-Wert | 4096 |
| Stromauflösung | 0.625 mA / Bit |
| Leistungsauflösung |