AttoPilot Voltage and Current Sense Breakout - 45A
The AttoPilot is a compact voltage and current sense breakout board. It measures DC current via a voltage drop across parallel shunt resistors, converted to an analog output by a TI INA-169 IC. Voltage sensing uses a precision resistor divider scaled to a 3.3V ADC range. Both outputs are self-powered from the measured line — no separate power supply needed.
Key Features
- Voltage & Current Sensing – Simultaneous measurement with analog outputs
- 3.3V ADC Compatible – Outputs scaled for direct connection to 3.3V microcontroller ADCs
- Self-Powered – No external power supply required
- Very Low Zero-Current Offset – Accurate readings at low currents
- Compact Design – Just 4 × 15 × 19mm
Specifications
- Recommended Input Voltage – Up to 13.6V (max 51.8V)
- Maximum Current – 44.7A
- Current Sense IC – TI INA-169
- Output – Analog voltage scaled for 3.3V ADC
- Dimensions – 4 × 15 × 19mm
Ideal For
- Drone and UAV power monitoring
- Battery current and voltage logging
- Solar panel and power system monitoring
- High-current DC load measurement
Note: Supplied without leads or connectors. Pad sizes accommodate up to 12 AWG wire. Take care when soldering to avoid shorts — smaller gauge wire is easier to work with.
Resources
The AttoPilot Voltage and Current Sense Breakout - 45A appears in the following collections:
SKU SF-SEN-10643
by Little Bird
