ATmega328P MPU6050 KiCad
Worked for 7 mins 31 sec
I’m blocked from directly wiring the TP4056 BAT pin to the ATmega
+5V rail because the board currently uses a 16 MHz ATmega328P, which requires 4.5–5.5 V at 16 MHz; a 3.7 V LiPo would fall below that.Recommended safe path:
- TP4056 charges the 1-cell LiPo.
- Battery output feeds a 5 V boost regulator.
- Boost output powers the existing
+5Vrail for the ATmega and headers.
Alternative low-power path:
- Run the ATmega from the raw LiPo/3.3 V rail.
- Change the clock from 16 MHz to 8 MHz or lower.
- Verify all connected parts are 3.3 V-compatible.
Want me to add the 5 V boost stage and wire the TP4056 + battery path into the existing
+5V rail?
i currently bypass vin and wire the + to 5v pins
Thought for 6 sec
That works only if the “+” source is already regulated 5 V.
For a single 3.7 V LiPo:
- Do not wire battery + directly to the board’s 5V pins while keeping the 16 MHz ATmega clock.
- A LiPo is about 4.2 V full, ~3.7 V nominal, and can fall near 3.0 V discharged.
- The ATmega328P at 16 MHz requires 4.5–5.5 V, so raw LiPo power will be out of spec most of the discharge curve.
Safe options:
- Best match to your current wiring: LiPo → TP4056 charger → 5 V boost converter → board
+5Vpins. - Lower-power option: LiPo/raw battery → board rail, but change ATmega clock to 8 MHz or lower and make the MPU/I/O voltage-compatible.
Also note: a TP4056 is a charger only, not a 5 V regulator. Its
BAT pin should go to the battery/boost input, not directly to a 16 MHz +5V rail.Add boost stage
Use 8 MHz
Fix power issues
Pick boost part
Check battery current
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Project Specification
Overview
Reconstruct/import an ATmega328P-class Nano-style controller combined with an MPU6050 6-axis IMU over I2C.
Functional Blocks
- ATmega328P-class AVR microcontroller
- MPU6050 IMU module on I2C
- 16 MHz crystal clock for Nano/Arduino compatibility
- Reset circuit and ISP/UART programming headers
- 5 V and GND rails with decoupling and I2C pull-ups
Notes
The uploaded KiCad ZIP could not be enumerated by the file reader, so this project is being reconstructed from standard ATmega328P + MPU6050 wiring patterns rather than an exact source-file import.
Overview
Functional Blocks
Notes
