CJMCU
racerxdl·kicad-board-collection·CJMCU-925x/CJMCU/CJMCU.kicad_pcb
About the CJMCU PCB
CJMCU is an open source PCB design by racerxdl, published on GitHub under the MIT license. It is a 2-layer board measuring 15 × 15 mm, with 11 components from 6 distinct parts.
Other key parts include the MPU-9250 and BMP280. By type, the board carries 4 capacitors, 4 resistors, 2 ICs and 1 connector.
It belongs with the sensors designs in this gallery.
From the project
Kicad Board Collection for use in 3D Projects

Main components on the CJMCU
CJMCU bill of materials (BOM)
11 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MPU-9250 | InvenSense_QFN-24_3x3mm_P0.4mm | U1 |
| 1 | BMP280 | Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U2 |
| 1 | Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J1 |
| 4 | 100nF | C_0603_1608Metric | C1, C2, C3, C4 |
| 2 | 1k | R_0603_1608Metric | R1, R3 |
| 2 | 4k7 | R_0603_1608Metric | R2, R4 |
CJMCU design files
The KiCad project lives in the racerxdl/kicad-board-collection repository on GitHub; these links point at the commit this page was built from.
CJMCU: common questions
How big is the CJMCU PCB?
The CJMCU measures 15 × 15 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CJMCU?
11 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the CJMCU design files?
From the racerxdl/kicad-board-collection repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CJMCU design in my own project?
Yes, under the terms of its MIT license, which racerxdl chose for the repository.
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