

PiicoDev LiPo Expansion Board for Raspberry Pi Pico
A prototyping platform for Raspberry Pi Pico, with solderless I2C connector and battery charging
- Size
- 50.4 × 51.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 42
- Pads
- 133
- Tracks, vias
- 152, 26
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 22 Mar 2021
- Updated
- 25 Jul 2022
Overview
PiicoDev LiPo Expansion Board for Raspberry Pi Pico is an open-source printed circuit board by CoreElectronics, from the CoreElectronics/CE-PiicoDev-LiPo-Expansion-Board-for-Raspberry-Pi-Pico repository on GitHub. It is a 2-layer board of 50.4 × 51.4 mm with 33 parts on 42 nets, routed with 152 tracks and 26 vias.
It is built around the DMG3415U-7. Its parts include 8 resistors, 4 connectors, 2 capacitors, 1 IC and 1 diode. It belongs with the power boards and the RP2040 boards of this library.
Main components
1README
README.mdPiicoDev® LiPo Expansion Board for Raspberry Pi Pico

The PiicoDev® LiPo Expansion Board for Raspberry Pi Pico is a great way to start experimenting with Raspberry Pi Pico/RP2040. Thanks to the onboard PiicoDev connector, you can quickly and easily connect to the PiicoDev family of sensor modules without soldering.
- Breaks out each Pico pin, with handy labels
- Take your project on the go with on-board LiPo battery charging.
- PiicoDev connector, compatible with Qwiic and STEMMA QT (3.3V only)
- Manufactured and supported in Australia by Core Electronics
Technical Details
- Dimensions: 51x51mm
- M2.5 mounting holes
- Charge current: approx 220mA / 440mA (when Fast Charge jumper is soldered)
- PiicoDev connector: I2C0 (SCL:Pin 9, SDA:Pin 8)
- PiicoDev connector pinout:
- 1 GND
- 2 3.3V
- 3 SDA
- 4 SCL
- The I2C Bus presented at the PiicoDev connector contains series 120Ohm resistances to prevent destructive signal undershoot. Refer to the schematic for more information. To operate without these series resistors, users may connect directly to the GPIO instead.
License
This project is open source - please review the LICENSE.md file for further licensing information.
If you have any technical questions, or concerns about licensing, please contact technical support on the Core Electronics forums.
"PiicoDev" is a registered trademark of Core Electronics Pty Ltd
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 4k7 | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R5, R6 |
| 4 | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 | |
| 2 | CoreElectronics_Components:PinSocket_2x20_P2.54mm_Vertical_SMD_With_Post | J3, J4 | |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 120R | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | DMG3415U-7 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | FAST_CHG | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | G*** | kibuzzard-629D8D64 | kibuzzard-629D8D64 |
| 1 | G*** | kibuzzard-629D909F | kibuzzard-629D909F |
| 1 | G*** | kibuzzard-629D8D5D | kibuzzard-629D8D5D |
| 1 | G*** | kibuzzard-629D8D6F | kibuzzard-629D8D6F |
| 1 | G*** | kibuzzard-629D90AA | kibuzzard-629D90AA |
| 1 | G*** | kibuzzard-629D8D51 | kibuzzard-629D8D51 |
| 1 | G*** | kibuzzard-62DE0FE6 | kibuzzard-62DE0FE6 |
| 1 | G*** | kibuzzard-629D9090 | kibuzzard-629D9090 |
| 1 | I2C | CoreElectronics_Components:SolderJumper-3_P1.3mm_Closed_RoundedPad1.0x1.5mm | JP2 |
| 1 | JST PH | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LOGO_CoreElectronics_made-with-love | CoreElectronics_Artwork:CoreElectronics_logo_5mm | G1 |
| 1 | LOGO_PiicoDev | CoreElectronics_Artwork:piicodev_logo_14.2x3.4mm | G2 |
| 1 | MCP73832-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | PiicoDev | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
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Questions
How big is the PiicoDev LiPo Expansion Board for Raspberry Pi Pico PCB?
It measures 50.4 × 51.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PiicoDev LiPo Expansion Board for Raspberry Pi Pico use?
33 parts, built around the DMG3415U-7. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PiicoDev LiPo Expansion Board for Raspberry Pi Pico KiCad files?
From the CoreElectronics/CE-PiicoDev-LiPo-Expansion-Board-for-Raspberry-Pi-Pico repository on GitHub, at the commit this page was made from: the board is PCB/PiicoDev-LiPo-Expansion-Board-for-Raspberry-Pi-Pico.kicad_pcb and its schematic PCB/PiicoDev-LiPo-Expansion-Board-for-Raspberry-Pi-Pico.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PiicoDev LiPo Expansion Board for Raspberry Pi Pico design in my own project?
Its repository states no licence, so its author keeps all rights: ask CoreElectronics before reusing the design.