I'm looking for a cheap dev kit with an ARM Cortex CPU and both a 3-axis gy ro and a 3-axis accelerometer. Anyone know of such a board ? I really don 't need much else apart from the ability to drive 3 PWM channels as outputs . Project is a stabilised camera platform for use on a boat.
F3 announces " It is based on an STM32F303VCT6 and includes an ST-LINK/V2 embedded debug tool interface, Gyroscope ST MEMS, E-compass with accelerometer ST MEMS, LEDs, pushbuttons and a USB mini-B connector."
Interesting. It looks to me like the F3 has this nice fancy sensor and the F4 just has an accelerometer, or am I looking at the wrong doc about the F4? I had thought of getting an F4 board since it's a more powerful CPU than the F3 while the board costs about the same, but the sensor makes the F3 much more interesting.
L3GD20, ST MEMs motion sensor, 3-axis digital output gyroscope LSM303DLHC, ST MEMs system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor
External application power supply: 3V and 5V LIS302DL, ST MEMS motion sensor, 3-axis digital output accelerometer MP45DT02, ST MEMS audio sensor, omnidirectional digital microphone CS43L22, audio DAC with integrated class D speaker driver
It looks like the F3 board has the gyroscope and mag sensor, but the F4 has nicer audio stuff.
That's why I got the F3, but the F4 has USB OTG which the F3 lacks. F4 also has a USB CDC (Virtual COM port or VCP) example too, which the F3 lacks; I'm in the process of building one. Shouldn't be too hard, starting from the HID Joystick example that ST provides.
I bought it to control a digital radio chip in a hand-held direction finding sniffer (for which the IMU will know the direction) but I might wind up adding an RF stage, VFO, mixer and downconvert to 50KHz to do the rest as an SDR in the F3... maybe.