⚡ MiniMeter
Compact LiPo Charger & Battery Meter
Skip ahead to the mods if you're just looking to install your MiniMeter!
Overview
MiniMeter is a compact LiPo Charger & Battery Meter. The minimal footprint can be dropped into any existing design or easily powers microcontrollers! Every DevKitty design is compatible with MiniMeter.
Features
- 🔋 Measure Battery Level
- ⚡ LiPo Charging
- ⚡ Toggle Charging Speed
- ⚡ Constant 3.3V Output (LDO)
Usage
On the CutieCat, its as simple as soldering MiniMeter into place! You can hook up an external LiPo battery & connect a switch.
Components
| Name | Part | Description |
|---|---|---|
| MAX17048 | Custom Circuit Board design | Comes with all SMD components pre-soldered for user ease. |
| AP2112K | Low Dropout Regulator | Comes with all SMD components pre-soldered for user ease. |
| MCP73318 | Custom Circuit Board design | Comes with all SMD components pre-soldered for user ease. |
Pinout
| # | Name | Description |
|---|---|---|
| 1 | GND | |
| 2 | 3V3 | |
| 3 | SDA | Read battery % over I2C |
| 4 | SCL | Read battery % over I2C |
| 5 | GND | |
| 6 | VCC | Power in & out* |
| 7 | BAT | Battery + |
| 8 | EN | Short to BAT |