Cpm vehicle
About the Cpm vehicle PCB
Cpm vehicle is an open source AVR/Arduino PCB design by AaravG42, published on GitHub. It is a 2-layer board measuring 95 × 50 mm, with 82 components from 40 distinct parts.
Its main chip is the ATMEGAAU, from the AVR/Arduino family. Other key parts include the RPI-ZERO, BQ25887RGET, TXB0104PWR, CH340G and R5460N. By type, the board carries 33 resistors, 21 capacitors, 6 ICs, 6 connectors, 5 transistors and 3 diodes.
Main components on the Cpm vehicle
Cpm vehicle bill of materials (BOM)
82 components, 40 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGAAU | TQFP100_atmega2560 | IC1 |
| 1 | RPI-ZERO | rpi_zero_w | IC2 |
| 1 | BQ25887RGET | QFN50P400X400X100-25N | U2 |
| 1 | TXB0104PWR | TXB0104PWR | U3 |
| 1 | CH340G | SOIC-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | R5460N TOPPOWER(Nanjing Extension Microelectronics) | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | U8 |
| 1 | BNO055 | BNO055_IMU | A1 |
| 1 | DMG9926UDM | SOT-23-6 | Q3 |
| 4 | BSS123 | SOT23_NMOS | Q11, Q12, Q13, Q14 |
| 2 | CONN_02X03_COUNTER_CLOCKWISE Conn_02x03_Counter_Clockwise | HARWIN_M20-9980346 | J1, J2 |
| 1 | CONN_01X05 Conn_01x05 | PinHeader_1x05_P2.54mm_Horizontal | J3 |
| 1 | USB_B_Mini | MICRO-USB-SMD_5P-P0.65-H-F_MICRO5.9MMUSB | J5 |
| 1 | CONN_01X03_SOCKET Conn_01x03_Socket | PinSocket_1x03_P2.54mm_Horizontal | J6 |
| 1 | NCP1117 | SOT223_ncp1117 | P1 |
| 1 | PINHD-2X5 | 2X05_EXT_PINS | EXT_PINS0 |
| 2 | XO91 | SM77H_crystal_oscillator | QG1, QG2 |
| 1 | SW_DIP_X01 SW_DIP_x01 | Dip_switch_1 | SW1 |
| 1 | SW_DPDT_X2 SW_DPDT_x2 | SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SW2 |
| 1 | TYPE-C-31-M-17 | USB-C-SMD_10P-P1.00-L6.8-W8.9 | USB1 |
| 3 | LED | LED_0805_2012Metric | D2, D3, D4 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1UH 1uH | L_7.3x7.3_H3.5 | L2 |
| 2 | 10UF 10uF | C0805_10681391 | C1, C12 |
| 1 | 44UF 44uF | C0805_10681391 | C2 |
| 1 | 4.7UF 4.7uF | C0805_10681391 | C5 |
| 1 | 1UF 1uF | C0805_10681391 | C6 |
| 1 | 47NF 47nF | C0805_10681391 | C8 |
| 11 | 100NF 100nF | C0805_10681391 | C9, C11, C41, C42, C51, C53, C54, C55 +3 |
| 2 | 10NF 10nF | C0805_10681391 | C10, C71 |
| 2 | 220UF 220uF | C_1206_3216Metric | C31, C63 |
| 11 | 1K | R_0603_1608Metric | R1, R2, R3o1, R5, R6, R23, R24, R26 +3 |
| 3 | 10K 10k | R_0603_1608Metric | R3, R4, R7 |
| 1 | 47K 47k | R_0603_1608Metric | R8 |
| 8 | 330 | R_0603_1608Metric | R9, R10, R15, R16, R17, R18, R25, R28 |
| 4 | 180 | R_0603_1608Metric | R11, R12, R13, R14 |
| 1 | 383 | R_0603_1608Metric | R19 |
| 1 | 2.2K | R_0603_1608Metric | R20 |
| 1 | 20K 20k | R_0603_1608Metric | R21 |
| 1 | 300 | R_0603_1608Metric | R22 |
| 1 | 5.23K | R_0603_1608Metric | R29 |
| 1 | PINHD-1X2/90 | 1X02_90_rpi | R/W0 |
Cpm vehicle design files
The KiCad project lives in the AaravG42/cpm_vehicle_pcb repository on GitHub; these links point at the commit this page was built from.
Cpm vehicle: common questions
What microcontroller does the Cpm vehicle use?
The Cpm vehicle is built around the ATMEGAAU, from the AVR/Arduino family.
How big is the Cpm vehicle PCB?
The Cpm vehicle measures 95 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Cpm vehicle?
82 components, from 40 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Cpm vehicle design files?
From the AaravG42/cpm_vehicle_pcb repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Cpm vehicle design in my own project?
The repository has no license, so all rights stay with AaravG42. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Cpm vehicle without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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