Introduction: Isolated INA219 Module
It is a standard INA219 module but this has an isolated measured voltage from the MCU. This means you can measure the voltage that does not have the same GND on both sides.
Step 1: Hardware Components
4K7 resistor 1206 4pcs
10K resistor 1206 2pcs
10uF capacitor 2pcs
Power Isolated Module 5V/5V 1pcs
ADUM1250ARZ - Digital I2C Isolator 1pcs
INA219 SOIC-8 1pcs
SMD Fuse holder 1pcs
SMD 3A fuse 1pcs
Male header 4p 2pcs
Terminal block 1pcs
PCB 1pcs
Step 2: Schematics and PCB
Step 3: PCB Description
Board measure voltage 0-26V and current 0-3A.
On board are four mounting holes of diameter 4mm.
On board is 3A fuse for module protection. MCU is connected to the right pin header.
The top pin header is just for other modules that we want to isolate from the MCU,
The maximum current consumption of devices connected to the top pin header is 50mA.
I2C address:
- 0x40 - no jumpers required
- 0x41 - bridge JP1
- 0x44 - bridge JP2
- 0x45 - bridge JP1 and JP2
Thank you for reading, please like and write comments.
This project is sponsored by LCSC component.
