Doing an electronics project where space comes at a premium? A regular rpi pico is to large? Have a look at the XIAO-RP2040 from Seeed Studio.
RP2040 | RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom. Dual-core Arm Cortex M0+ processor, flexible clock running up to
WisdPi Tiny RP2040 | Tiny MCU Board Based on Raspberry Pi RP2040 Chip, Dual-Core Arm Cortex M0+ Processor up to 133 MHz, Onboard 4MB Flash, RGB LED
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RP2040 | RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom. Dual-core Arm Cortex M0+ processor, flexible clock running up to
WisdPi Tiny RP2040 | Tiny MCU Board Based on Raspberry Pi RP2040 Chip, Dual-Core Arm Cortex M0+ Processor up to 133 MHz, Onboard 4MB Flash, RGB LED
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WisdPi Tiny RP2040 Tiny MCU Board Based on Raspberry Pi RP2040 Chip, Dual-Core Arm Cortex M0+ Processor up to 133 MHz, Onboard 4MB Flash, RGB LED, USB-C Connector, Support C/C++,MicroPython
Seeed Studio XIAO RP2040 - RobotShop