4-Channel Current/Voltage/Power Monitor HAT for Raspberry Pi
Summary of 4-Channel Current/Voltage/Power Monitor HAT for Raspberry Pi
This 4-channel Current and Power Monitor HAT for Raspberry Pi enables easy monitoring of current, voltage, and power consumption via I2C or SMBus interface. It features a standard 40-pin GPIO header compatible with Raspberry Pi Zero, 2, 3, and 4. The HAT includes onboard 0.1Ω 1% sampling resistors for bi-directional current measurement up to 3.2A, a 12-bit ADC for voltage measurement (0-26V), and direct power calculation. It supports multiple successive conversions and offers development resources with examples for Raspberry Pi, Arduino, and STM32.
Parts used in the 4-Channel Current and Power Monitor HAT:
- Raspberry Pi 40-pin GPIO extension header
- Onboard 0.1Ω 1% sampling resistors (4 pieces)
- 12-bit Analog-to-Digital Converter (ADC)
- I2C/SMBus communication interface
- PCB board (65mm × 30mm)
- Mounting hardware (compatible with 3.0mm mounting holes)
Description
This is a 4-channel current and power monitor HAT designed for the Raspberry Pi.
Using the I2C or SMBus interface, it is easy to monitor each channel’s current, voltage, and power consumption, as well as the voltage between both sides of the sampling resistor.
Features
- Standard Raspberry Pi 40PIN GPIO extension header
- Supports Raspberry Pi Zero/2/3/4
- 4-channel monitoring via I2C/SMBus interface
- Onboard 0.1Ω 1％ sampling resistor, allows measuring bi-directional current up to 3.2A
- Embedded 12-bit ADC, supports multiple successive converting, 0~26V voltage measuring range
- Directly calculate and output measured power value through additional multiply register
- I2C control pins for connecting with other host boards
- Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Specifications
- Operating voltage: 3.3V/5V
- Control interface: I2C/SMBus
- Sampling resistor: 0.1Ω 1%
- Voltage range: 0~26V
- Current range: ±3.2A
- Resolution: 0.8mA (±3.2A range) OR 0.1mA (±400mA range)
- Dimensions: 65mm × 30mm
- Mounting hole size: 3.0mm
Resources
Product Wiki: http://www.waveshare.com/wiki/Current/Power_Monitor_HAT
Price: £ 13