Olimex STM32-H107 ST M3 STM32F107 Header Board

The Olimex STM32-H107 Cortex M3 development board hosts a STM32F107VCT6 32-bit RISC core MCU operating at a 72MHz with 256KB flash and 64KB RAM. The MCU provides 2 x 12-bit ADCs, 4 x general-purpose 16-bit timers and a PWM timer plus communication interfaces including up to 2 x I2Cs, 3 x SPIs, 2 x I2Ss, 5 x USARTs, a USB OTG FS and two CANs. The general purpose timers can also be used for PWM and the ADCs can serve up to 16 external inputs. The MCU also has 2 x digital to analog (DAC) channels which can be served by the internal DMA function and have 8 x trigger inputs. With all microcontrollers each IO pin can serve multiple purposes and the requirements of a particular application can clash with this arrangement leading to design compromises or additional expense. However, the STM32F107VCT6 has a remap facility that allows some functions to be moved to alternative pins to make the best of specialist functions and even to optimise circuit layout. The F107 has a low power standby mode and a wake-up button is included on the board though other wake-up sources are available. If the wake-up function isn't needed then the button can be used for user input. Two 40-way pin headers make many of the IO pins easily available.

• 3V battery connector
• JTAG connector with ARM 2 x 10 pin layout
• –40 to +105°C temperature range
• Dimensions 70 x 50mm (2.76 x 1.97in)