Common circuit
About the Common circuit PCB
Common circuit is an open source STM32 PCB design by ArunCH404, published on GitHub. It is a 2-layer board measuring 179.1 × 171.5 mm, with 41 components from 23 distinct parts.
Its main chip is the STM32F407_Discovery, from the STM32 family. By type, the board carries 6 modules, 6 LEDs, 4 diodes, 2 connectors, 2 capacitors and 1 battery holder.
From the project
ABU_Robocon_2024 necessary circuits
Common circuit bill of materials (BOM)
41 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | Conn_01x04_Female | jst_4 | M1E1, M2E1, M3E1, M4E1 |
| 2 | Conn_01x04 | jst_4 | M2/M1, M3/M4 |
| 1 | Conn_01x02_Female | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04_Male | jst_4 | J7 |
| 1 | R | R_Axial_DIN0414_L11.9mm_D4.5mm_P15.24mm_Horizontal | 0 |
| 1 | 4050 | DIP-16_W7.62mm_LongPads | 4050 |
| 1 | BRUSHLESS1 | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | BRUSHLESS1 |
| 1 | BRUSHLESS2 | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | BRUSHLESS2 |
| 1 | Conn_01x04_Male | jst_4 | BT1 |
| 2 | Conn_01x04_Male | jst_4 | CAN1, XBEE1 |
| 4 | Conn_01x25_Female | PinSocket_1x25_P2.54mm_Vertical | EXTENDER_L_IN1, EXTENDER_L_OUT1, EXTENDER_R_IN1, EXTENDER_R_OUT1 |
| 1 | Conn_01x04_Female | jst_4 | FWE1 |
| 1 | I2C1 | jst_4 | I2C2 |
| 1 | Conn_01x05 | JST_5_BIG | Pow_Supply1 |
| 1 | STM32F407_Discovery | STM32F407_Discovery | S1 |
| 1 | Servo1 | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | SERVO1 |
| 1 | Servo2 | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | SERVO2 |
| 3 | Conn_01x03_Male | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | UART1, UART2, UART4 |
| 6 | LED_Small | LED_D3.0mm | ST1, ST2, ST3, ST4, ST5, ST6 |
| 4 | LED_Small | LED_D3.0mm | D2, D4, D6, D8 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C_Small | Capacitor_Disc_Small | 100 |
| 1 | 104nF | Capacitor_Disc_Small | C1 |
| 1 | R_Small | Resistor_small | 220 |
Common circuit design files
The KiCad project lives in the ArunCH404/ABU_ROBOCON_2024_CIRCUITS repository on GitHub; these links point at the commit this page was built from.
Common circuit: common questions
What microcontroller does the Common circuit use?
The Common circuit is built around the STM32F407_Discovery, from the STM32 family.
How big is the Common circuit PCB?
The Common circuit measures 179.1 × 171.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Common circuit?
41 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the Common circuit design files?
From the ArunCH404/ABU_ROBOCON_2024_CIRCUITS repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Common circuit design in my own project?
The repository has no license, so all rights stay with ArunCH404. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Common circuit without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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