4 layers16.9 × 119.4 mm
2 layers26.1 × 29.7 mm
Framework battery indicator module
3nt3/framework-battery-indicator-module- Size
- 26.1 × 29.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 39
- Pads
- 132
- Tracks, vias
- 176, 30
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Jan 2026
- Updated
- 11 Jan 2026
Overview
Framework battery indicator module is an open-source printed circuit board by 3nt3, from the 3nt3/framework-battery-indicator-module repository on GitHub. It is a 2-layer board of 26.1 × 29.7 mm with 29 parts on 39 nets, routed with 176 tracks and 30 vias.
It is built around the LTR-303ALS-01 and LP5907MFX-3.3. Its parts include 10 resistors, 8 capacitors, 5 diodes, 3 ICs and 2 connectors. It belongs with the power boards and the STM32 boards of this library.
Main components
2
LTR-303ALS-01
DFN-6(2x2)-30℃~+70℃ 0.7mm 16bit 2.4V~3.6V 2mm 2mm 64klx I2C Light Intensity Low power/sleep mode、Spectral correction/filtering、Adjustable gain control、Interrupt/event trigger、Built-in temperature compensation DFN-6(2x2) Ambient Light Sensors ROHSLite-OnAmbient Light Sensors
LP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 680R | Capacitor_SMD:C_0402_1005Metric | R6, R7, R8, R9, R10 |
| 5 | LED | LED_SMD:LED_0402_1005Metric | D1, D2, D3, D4, D5 |
| 4 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C4, C7, C8 |
| 4 | 10k | Capacitor_SMD:C_0402_1005Metric | R2, R3, R4, R5 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C2, C5, C6 |
| 1 | 5k1 | Capacitor_SMD:C_0402_1005Metric | R1 |
| 1 | C | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | Conn_01x03_Socket | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J1 |
| 1 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | LTR-303ALS-01 | OptoDevice:Lite-On_LTR-303ALS-01 | U2 |
| 1 | STM32L052K6Ux | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U1 |
| 1 | SW_Push | easyeda2kicad:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL_H1.5 | SW1 |
| 1 | USB_C_Plug | Connector_USB:USB_C_Plug_Molex_105444 | P1 |
Questions
How big is the Framework battery indicator module PCB?
It measures 26.1 × 29.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Framework battery indicator module use?
29 parts, built around the LTR-303ALS-01 and LP5907MFX-3.3. 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 Framework battery indicator module KiCad files?
From the 3nt3/framework-battery-indicator-module repository on GitHub, at the commit this page was made from: the board is pcb/framework-battery-indicator-module.kicad_pcb and its schematic pcb/framework-battery-indicator-module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Framework battery indicator module design in my own project?
Its repository states no licence, so its author keeps all rights: ask 3nt3 before reusing the design.
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