Everything about this board: schematic, PCB gerber and BOM are free to distribute under open-source license for users.
The STM32F4 series chip inside openSTM32 board is based on ARM Cortex-M4 with floating point unit (FPU).
| Items | Specifications |
|---|---|
| Power supply | 5V micro USB 5~36V Jack DC |
| Microcontroller | STM32F405RGT6 / 32-bit ARM Cortex-M4 with FPU(168MHz, 225DMIPS) |
| Sensors | 3 axis gyroscope, 3 axis accelerometer, 3 axis magnetometer (MPU9250) |
| Programmer | JTAG/SWD connector Serial (UART3) |
| Communicaton Ports | UART x 3 I2C x 1 SPI x 1 |
| Multimedia | I2S x 1 |
| Analog input | ADC channel x 5 |
| Analog output | DAC channel x 1 |
| PWM | Timer PWM x 4 |
| Leds and buttons | D7 and D8: USB communication D6: 3V3 power on D1: USER LED status SW2: Reset button SW1: USER button |
| Digital I/O | 10 pins |
| Output power source | 5V max 3A (TPS5430 step-down converter) 3V3 max 1A (AMS1117 linear regulator) |
| Dimensions | 68 x 64 mm |
NOTE:
This board auto select power supply when both USB and jackDC are powered.
Download BOM here.
Download PCB gerber here.