DevLab: PY32F003L24D6TR MCU Dev Board

Introduction

The DevLab Development Board based on the PY32F003L24D6TR microcontroller is designed for rapid prototyping, embedded systems education, IoT experimentation, and wearable devices. This board combines flexible power options, modern connectivity, and accessible interfaces to accelerate your hardware development. The microcontroller features a 32-bit ARM Cortex-M0 core, up to 24 MHz clock speed, 16KB Flash memory, and 2KB SRAM, making it suitable for a wide range of applications. With built-in peripherals like SPI, I2C, UART, and a 12-bit ADC, the board supports diverse project requirements.

PY32f003L24D6TR Devlab

Quick Setup

Use Cases

• Device Prototyping
• Embedded Systems Education
• Networked Alambric Devices
• Wearable Technology Development

Resources

• Schematics
• Datasheet

License

All hardware and documentation in this project are licensed under the MIT License.
Please refer to LICENSE.md for full terms.

Hardware Overview

Schematics

Technical Specifications

• Microcontroller: PY32f003L24D6TR (ARM Cortex-M0)
• Core Architecture: 32-bit ARM Cortex-M0
• Clock Speed: 24 MHz
• Flash / RAM: 16 KB Flash, 2 KB SRAM
• Wireless: None
• Interfaces: I2C, SPI, UART, ADC
• Connector: QWIIC + Pin Headers
• Power:
  • Input via USB-C: 5V
  • Regulated Output: 3.3V
  • Battery Support: No

Pinout

Pinout

Pinout Details

Connectivity Options

• I2C: JST 1mm QWIIC connector (Power + I2C lines)
• SPI: JST 1mm connector (Power + SPI lines)
• GPIO: 2x 4-pin headers for general-purpose I/O
• SWD: Dedicated pins for programming and debugging

Board Dimensions

Dimensions

Board Topology

Topology

Ref.	Description
IC1	PY32f003L24D6TR Microcontroller
U1	AP2112K 3.3V Regulator
SW1	Reset Push Button
L1	Power On LED
L2	Built In LED to PB5
J1	JST 1mm Connector for I2C or JTAG
J2	JST 1mm Connector for I2C or JTAG
J3	JST 1mm Connector for SPI
JP1	Header for GPIOs
JP2	Header for GPIOs
JP3	Header for Power Supply Selection
SB1	Solder Bridge to Enable LED Built In

References

• datasheet

Technical Specifications

• Microcontroller: PY32f003L24D6TR (ARM Cortex-M0)
• Core Architecture: 32-bit ARM Cortex-M0
• Clock Speed: 24 MHz
• Flash / RAM: 16 KB Flash, 2 KB SRAM
• Wireless: None
• Interfaces: I2C, SPI, UART, ADC
• Connector: QWIIC + Pin Headers
• Power:
  • Input via USB-C: 5V
  • Regulated Output: 3.3V
  • Battery Support: No

Pinout

Pinout

Pinout Details

Connectivity Options

• I2C: JST 1mm QWIIC connector (Power + I2C lines)
• SPI: JST 1mm connector (Power + SPI lines)
• GPIO: 2x 4-pin headers for general-purpose I/O
• SWD: Dedicated pins for programming and debugging

Board Dimensions

Dimensions

Board Topology

Topology

Ref.	Description
IC1	PY32f003L24D6TR Microcontroller
U1	AP2112K 3.3V Regulator
SW1	Reset Push Button
L1	Power On LED
L2	Built In LED to PB5
J1	JST 1mm Connector for I2C or JTAG
J2	JST 1mm Connector for I2C or JTAG
J3	JST 1mm Connector for SPI
JP1	Header for GPIOs
JP2	Header for GPIOs
JP3	Header for Power Supply Selection
SB1	Solder Bridge to Enable LED Built In

References

• datasheet

Getting Started

Quick Setup

1. Hardware Connections

Note: Compatible with JST 1 mm pitch QWIIC connector for easy I2C integration (power only, D0 must be connected separately).

2. Software Installation

Package-Specific Information

            DFN8 Pinout (Top View):
               VCC  1 ┌─────┐ 8  PB5/LED
               PA0  2 │     │ 7  PA14-SWDCK/PB6
               PA1  3 │     │ 6  PA13-SWDIO/PA10
               PA2  4 └─────┘ 5  PB0/PF2-NRST

Pinout PY32F003L24D6TR DevLab Development Board

• VCC: Power input for the board
• GND: Ground connection
• PA0: USART2 transmit (TX) or SPI MISO function
• PA1: USART2 receive (RX) or SPI SCK function
• PA2: Analog input channel 2 (ADC_IN2) or SPI chip select (CS)
• PB0 / PF2: General-purpose I/O (GPIO) or external reset (NRST)
• PB5: On-board LED, general-purpose I/O (GPIO), or SPI MOSI function
• PA13 / PB6: Serial Wire Debug I/O (SWDIO) or I2C clock line (I2C_SCL)
• PA14 / PA10: Serial Wire Debug clock (SWCLK) or I2C data line (I2C_SDA)

Examples

Arduino/C++ Examples

The following examples demonstrate various features of this development board.

Hardware Documentation & Resources

Product Datasheet

Official product documentation with complete technical specifications.

Product datasheet not found in hardware directory.

Hardware Resources

• Schematic Diagram - Not found (looking for unit_sch_*.pdf)
• Pinout Reference - Pin configuration details

Software Resources

• Getting Started Guide - Setup and first steps
• Code Examples - Arduino sketches and demos
• Development Setup - IDE configuration

External Links

• Source Code Repository - Complete project files

Quick Reference

Hardware documentation extracted from project files.

License

MIT License

Copyright (c) 2025 UNIT-Electronics-MX

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

This project is licensed under the MIT License - see the LICENSE file for details.