![Amazon.com: 4-CH Current/Voltage/Power Monitor HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W, I2C/SMBus Interface Onboard 0.1Ω 1% Sampling Resistor Measure Bi-Directional Current up to 3.2A Embed 12-bit ADC : Electronics Amazon.com: 4-CH Current/Voltage/Power Monitor HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W, I2C/SMBus Interface Onboard 0.1Ω 1% Sampling Resistor Measure Bi-Directional Current up to 3.2A Embed 12-bit ADC : Electronics](https://m.media-amazon.com/images/I/71XXAYpf4UL.jpg)
Amazon.com: 4-CH Current/Voltage/Power Monitor HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W, I2C/SMBus Interface Onboard 0.1Ω 1% Sampling Resistor Measure Bi-Directional Current up to 3.2A Embed 12-bit ADC : Electronics
![Raspberry Pi UPS Power Supply Module GPIO Pin 5V Power Supply Stable Current Output Hat for Raspberry Pi 4B/3B+/3B (No Battery) Raspberry Pi UPS Power Supply Module GPIO Pin 5V Power Supply Stable Current Output Hat for Raspberry Pi 4B/3B+/3B (No Battery)](https://ae01.alicdn.com/kf/H4a1fb1d5b2a7428bb03781ef57a07421F/Raspberry-Pi-UPS-Power-Supply-Module-GPIO-Pin-5V-Power-Supply-Stable-Current-Output-Hat-for.jpg)
Raspberry Pi UPS Power Supply Module GPIO Pin 5V Power Supply Stable Current Output Hat for Raspberry Pi 4B/3B+/3B (No Battery)
![Amazon.com: waveshare 4-ch Current/Voltage/Power Monitor HAT for Raspberry Pi with I2C/SMBus Interface : Electronics Amazon.com: waveshare 4-ch Current/Voltage/Power Monitor HAT for Raspberry Pi with I2C/SMBus Interface : Electronics](https://m.media-amazon.com/images/I/61ZtDuo9S5L._AC_UF894,1000_QL80_.jpg)
Amazon.com: waveshare 4-ch Current/Voltage/Power Monitor HAT for Raspberry Pi with I2C/SMBus Interface : Electronics
![dc motor - How to detect an electric current in a secondary circuit (12v)? - Raspberry Pi Stack Exchange dc motor - How to detect an electric current in a secondary circuit (12v)? - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/ZwE7y.png)