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The Espruino is a JavaScript-based microcontroller that boasts 44 GPIO pins, a micro USB connector, and an SD card reader. While it doesn’t have any built-in Bluetooth or Wi-Fi, it has pads that allow you to add HC-05 Bluetooth modules.
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Espruino
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| Specs | |
| Espruino | By: http://espruino.com |
|---|---|
| Type: | Microcontroller |
| Price: | $40 |
| Software: | Espruino JavaScript Interpreter |
| Clock Speed: | 80 MHz |
| Processor: | 32-bit STM32F103RCT6 ARM Cortex-M3 |
| I/O Pins Digital: | 44 (26 PWM) |
| I/O Pins Analog: | 16 ADC, 2 DAC |
| WIFi?: | No |
| Video?: | No |
| Bluetooth?: | No |
| Ethernet?: | No |
| Operating Voltage: | 1.6-15V |
| Dimensions: | 2.1 in x 1.6 in |
| Memory: | 256KB flash |
| Additional Features: | 48kB RAM, on-board microsd card, and other cards can be added to any free pins |
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