Build the hexapod/robot arm/other articulated contraption of your dreams with this all-in-one RP2040 powered servo controller with current measurement, sensor headers and RGB LEDs.
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Servo 2040 is a standalone servo controller for making things with lots of moving parts. It has pre-soldered pin headers for plugging in up to 18 servos - enough for the leggiest of hexapod walkers or plenty of degrees of freedom for your robotic arms, legs or tentacles. Servos can be pretty power hungry, especially the chunky ones, so we've added some neat current monitoring functions so you can keep an eye on power consumption.
There's six addressable RGB LEDs (AKA Neopixels) for visual feedback and status reports, plus pin headers to connect up to six analog sensors - useful for sensing where the ground is, if you're about to crash into a wall, or how much pressure The Claw is exerting on your hapless test subject. We've also popped a QW/ST connector on there, to make it super easy to add a Qwiic or STEMMA QT breakout or two.
Servo 2040 is supported by a well documented C++/MicroPython servo library with lots of examples to show you how to use the individual features (and everything together).
Raspberry Pi's RP2040 microcontroller is a dual core ARM Cortex M0+ running at up to 133Mhz. It bundles in 264kB of SRAM, 30 multifunction GPIO pins (including a four channel 12-bit ADC), a heap of standard peripherals (I2C, SPI, UART, PWM, clocks, etc), and USB support.
One very exciting feature of RP2040 is the programmable IOs which allow you to execute custom programs that can manipulate GPIO pins and transfer data between peripherals - they can offload tasks that require high data transfer rates or precise timing that traditionally would have required a lot of heavy lifting from the CPU.