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Description
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Description
The Exen Proto from Nerdonic is a tiny 32-bit microcontroller compatible with arduino and breadboard development. It’s not just small, it’s powerful too running at 48MHz clock with 256KB ROM, 32KB RAM and 8 pins filled with functionality.
The Exen Proto is tiny
Measuring just 14.9 x 29.8mm at 1.1 grams, the Exen Proto is small as well as powerful. For size comparison is a UK 5 Pence coin (Equivalent size to a US Dime).
Arduino & Breadboard Compatible
The Exen Proto is fully compatible with breadboard development and the Arduino IDE and comes with the Arduino Zero bootloader pre-flashed.
Onboard Programmable LED
Show your code status, an error or make it flash when each code loop is complete, the onboard programmable led can be programmed however you like.
Specifications
| Microcontroller | Cortex M0+ |
| Bootloader | Arduino Zero Bootloader Pre-loaded |
| Input Voltage | Power Pin 1 = 3.3-20v (3.3-12v recommended for heavy load) Power Pin 2 = 3.3v Micro USB = 5v |
| Current Draw | ~10mA (Sleep modes available) |
| Clock | 48MHz |
| Flash Memory (ROM) | 256KB |
| SRAM | 32KB |
| I/O Pin Limits | 3.3v, 7mA |
| Digital I/O Pins | 20 Pins / 1 Pad |
| PWM Pins | 19 Pins / 1 Pad |
| Analog (ADC) Pins | 11 Pins (upto 12-bit) |
| Serial (RX/TX) Pins | 2 Pins |
| I2C (SDA/SCL) Pins | 5 Pins / 1 Pad |
| SPI Pins (MOSI/MISO/SCK) | 3 Pins |
| External Interrupts | 19 Pins / 1 Pad |
| Reset Pins | 1 |
| Dimensions | 29.8 x 14.9 x 4.4mm |
| Weight | 1.1 grams |
| Programming | Micro USB Port SWD Header |
| Connections | Micro USB 2.54mm Pin Headers SWD Header |
Exen Proto Pin-out
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