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Paul's Watch Mainboard REV05

Paul's Watch Mainboard REV05

Tiny Scarab Beetle Board

Tiny Scarab Beetle Board

SLIM2040

was $19.90 Special Price $14.93
Availability: In stock
SKU
CQY241120SL
Weight
45g
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SLIM2040 is a custom development board based on the the RP2040 chip.
It comes in a slim form factor and some notable additional features.

 

 

 

 

 

 

 

 

 

 

 

 

A RP2040-based dev board with some quirks

SLIM2040 is a custom development board based on the the RP2040 chip.
It comes in a slim form factor and some notable additional features.

 

 

Features

  • Power supply in the range 4.5~28V
    •   Convenient and easy integration in industrial environments.
    •   Can be powered directly by PLCs and other common industrial devices working in the same DC range, including the regular USB.
  • Reverse polarity protection
    •   A Schottky diode to protect from reverse polarity.
    •   Can be bypassed by shorting the appropriate pad on the back of the board if more current is needed.
  • Two user buttons
    •   Convenient and easy operation.
    •   Can be used as a controller for sensors or actuators.
  • Power LED, User LED and RGB LED
    •   Convenient and easy way to have a quick glimpse on the status of the system.
  • Qwiic/StemmaQT connector
    •   Convenient and easy way to connect and swap out I2C peripherals such as sensors, etc.
  • Designed to pair with an SSD1306 128 × 32 px OLED Display
    •   Convenient visualisation of data, values or parameters directly on the device.
  • Two dedicated GPIO for high voltage operation
    •   Convenient and easy integration in industrial environments.
    •   To send and read digital data from PLCs, etc.

 

 

SLIM2040 Rev 2.1 Overview

Specifications

Component Description
Board form factor: 48 × 16 mm
Power, data transfer: Micro USB Type-B interface
Power Supply: 4.5~28V via the USB connector or the provided solder pads
Polarity protection: 40V/1A Schottky diode, shortable via solder pad
Storage: 2MB QSPI flash
Interfacing: 16 × Total GPIO available via solder pads
  2 × high-voltage GPIO for industrial integration
  14 × supporting PWM
  1 × 12-bit ADC channels
Peripherals: I2C0 via JST-SH/Qwiic/StemmaQT connector
  I2C0 via through hole pads for SSD1306 128 × 32 px OLED
  I2C1 via solder pads
  SPI0 via solder pads
  UART0 via solder pads
  UART1 via solder pads
  SWC/SWD solder pads
LED: 1 × Power LED
  1 × User LED, PWM controllable
  1 × User WS2812B Neopixel RGB LED (w/ daisychain pad)
Buttons: 1 × BOOTSEL button - SW1 (doubles up as user input button)
  1 x User button - SW2
  1 × Reset button - SW3
Software compatibility: Micropython ・ CircuitPython ・ C/C++ ・ Arduino
Dimensions: Approximately 49 × 17 × 6 mm (w/ USB port, buttons)
  Approximately 49 × 17 × 9 mm (w/ USB port, buttons, OLED)

GPIO Solder Pads Pinout

GPIO PWM I2C SPI UART HV-GPIO
0 PWM0A SDA0 RX0 TX0 -
1 PWM0B SCL0 CS0 RX0 -
2 PWM1A SDA1 SCK0 CTS0 -
3 PWM1B SCL1 TX0 RTS0 -
4 PWM2A SDA0 RX0 TX1 -
5 PWM2B SCL0 CS0 RX1 -
10 PWM5A SDA1 SCK1 CTS1 -
11 PWM5B SCL1 TX1 TX1 -
12 PWM6A SDA0 RX1 TX0 -
16 PWM0A SDA0 RX0 TX0 -
17 PWM0B SCL0 CS0 RX0 -
18 PWM1A SDA1 SCK0 CTS0 -
19 PWM1B SCL1 TX0 RTS0 -
23 - - - - OUT
24 - - - - IN
26 PWM5A SDA1 SCK1 CTS1 -

Additional GPIO Information

  • I2C0 connector on GPIO16, GPIO17
  • User button on GPIO20
  • User WS2812B Neopixel RGB LED on GPIO21
  • ADC0 on GPIO26
  • `GPIO23 = Pin(23, Pin.OUT, Pin.PULL_DOWN)`
  • `GPIO24 = Pin(24, Pin.IN, Pin.PULL_UP)`

※ In order for the BOOTSEL button to be recognised as a User button, use: `rp2.bootsel_button()`.
※ High-voltage GPIOs make use of N-Channel MOSFETs.
※ OUT pad can switch a maximum of 30V.
※ IN pad control signal can be up to 12V.
※ All the GPIOs except those labeled as high-voltage (HV) operate in the regular 3.3V limit regardless of the input power voltage.

Resources

More information will be available soon on the SLIM2040 GitHub repository:

https://github.com/slabua/SLIM2040

Notes

※ The product pictures may refer to a previous revision of the product.
※ Display not included.

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