An Arduino core for the Serpente boards
This is an Arduino Core I created to allow my uLisp Lisp interpreter to be run on Serpente boards. You could also use this on its own to program the Serpente boards in C from the Arduino IDE.
For full information about the Serpente boards see: Serpente Documentation.
To buy the boards see: Serpente - A Tiny CircuitPython Prototyping Board on Tindie.
To get uLisp for the Serpente boards go to https://github.com/technoblogy/ulisp-serpente.
Installing the Serpente core
Install the Arduino Core as follows:
- Download the repository serpente-core.
- Move it into your Arduino/hardware folder.
When you restart the Arduino IDE there should be a new heading Arturo182 Serpente Boards on the Boards submenu with a single Serpente entry.
Description
These boards are based on the Microchip ATSAMD21E, an ARM Cortex M0+ CPU with a 48 MHz clock. There are three variants which differ only in the type of USB connector provided. Each board provides 256 KB flash and 32 KB RAM, and also include a separate 4 MB SPI DataFlash chip.
I/O pins
Apart from the power pins the boards provide six multi-purpose pins:
| Label | Functions |
|---|---|
| D0 | Digital I/O, analogue input, analogue output (PWM), MOSI. |
| D1 | Digital I/O, analogue input, analogue output (PWM), SCK. |
| D2 | Digital I/O, analogue input, analogue output (PWM), MISO. |
| D3 | Digital I/O, analogue input, analogue output (PWM). |
| D4 | Digital I/O, analogue input, analogue output (PWM), SDA, TX. |
| D5 | Digital I/O, analogue input, analogue output (PWM), SCL, RX. |
LED
The Serpente has an RGB LED connected to the following Arduino pin numbers:
| Pin | Functions |
|---|---|
| D6 | Red. |
| D7 | Green. |
| D8 | Blue. |