Raspberry Pi Pico RGB Matrix Display Panel Expansion S1

The Pico RGB Matrix Expansion S1 is a expansion board designed specifically for the Raspberry Pi Pico. It features a 10x20 WS2812 RGB LED matrix, DS1302 real-time clock chip, analog silicon microphone audio acquisition circuit, light-dependent resistor, and a reset button.

WS2812 RGB LED Matrix: Controlled via the GP22 pin of the Raspberry Pi Pico. The expansion board also features a PH2.0 1*4-pin connector at the bottom, which can be used to connect other control devices to control the LED matrix screen. It can display various texts and simple patterns. This screen is of the RGB type, with each pixel composed of 3 LED lights (red, green, blue), capable of displaying rich colors and diverse effects. Suitable for data display, dynamic display, music rhythm display, and other applications.

DS1302 Real-Time Clock Chip: Controlled via the GP6, GP7, GP8 (RST, IO, SCLK) pins of the Raspberry Pi Pico. This chip is powered primarily by the Raspberry Pi Pico, with a backup power supply provided by a button cell battery on the expansion board. It can keep time even when the Raspberry Pi Pico is not powered. This circuit can also display the time on the LED matrix, forming a simple electronic clock.

Analog Silicon Microphone Audio Sampling Circuit: Powered by the Raspberry Pi Pico, this module has high sensitivity and can capture faint sounds. It outputs analog signals to the GP28 pin, allowing for music rhythm display on the LED matrix when combined with the Raspberry Pi Pico.

Light-Dependent Resistor: The expansion board features a PH2.0 connector for inserting a light-dependent resistor, allowing the board to sense changes in ambient light. This sensor's resistance changes with the brightness of the environment, resulting in corresponding voltage changes. This allows for brightness control of the LED matrix on the expansion board through programming.

Reset Button: The Raspberry Pi Pico does not have a reset button. This product adds a reset button so that users can reset or debug without frequently plugging and unplugging the Pico's USB cable.

Product Features

• Onboard Raspberry Pi Pico interface, suitable for Raspberry Pi Pico series mainboards.
• Equipped with a 10x20 WS2812 RGB matrix screen for displaying simple characters, music rhythm, and some basic animated effects.
• 5V power supply voltage (provided by Pico).
• Onboard analog silicon microphone for audio sampling.
• Onboard light-dependent resistor connector for obtaining ambient brightness.
• Onboard DS1302 RTC (Real-Time Clock) chip, with backup battery holder, capable of timing year, month, week, day, hour, minute, and second, featuring leap year compensation.
• Provides Python open-source example programs that can be used for Raspberry Pi Pico development boards.

Product Specifications

Resource profile

①CR1220 Button Battery Holder

②Raspberry Pi Pico Female Header

③Light-Dependent Resistor Connector

④DS1302 Real-Time Clock Chip

⑤Raspberry Pi Pico Reset Button

⑥Analog Silicon Microphone

⑦Silicon Microphone Amplification Adjustment

⑧WS2812 LED Matrix Interface Connector

⑨0807 RGB LED Matrix screen

Wiki:

Pico RGB Matrix Expansion S1

Package Contents

• 1 Pico RGB Matrix Expansion S1 x 1
• 2 Light-Dependent Resistor x 1
• 3 CR1220 Button Battery x 1
• 4 Screws and Copper Standoffs

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