With the evolution of tiny PICO board from raspberry pi, various accessories are coming into the market to make its application rang more diversified.  This Waveshare 2-Channel UART To RS232 Module for Raspberry Pi Pico is one of the addition to communication interfaces for Raspberry Pi PICO  .

The PICO-2CH-RS232 is used for establishing RS232 communication with devices powered from 3V – 5.5V like PICO. It contains SP3232 (RS-232 Transceiver) and DB9 connector used for connecting PC and MCU. The RS232 Board features ESD protection and supports hardware flow control.

Pin Diagram:

Features:

1. Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series
2. Using UART bus, easily converting UART to RS232, or vice versa
3. Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)

Specifications

1. Operating voltage: 3.3V-5V
2. RS232 transceiver: SP3232EEN
3. Communication bus: UART
4. Baudrate: 300~912600bps

What’s On Board

1. SP3232 RS232 transceiver
2. Raspberry Pi Pico header
3. RS232 bus interface2-channel RS232 (DB9 male connector is also available through adapter cable)
4. TVS diode
5. ESD diode
6. UART status indicators RXD0/TXD0: Channel 0 RX/TX indicatorsRXD1/TXD1: Channel 1 RX/TX indicators

Package Includes:

1 x PICO-2CH-RS232 Module

1 x DB9 to 3PIN Adapter Cable

HDMI-SPLITTER-1IN-4OUT, an HDMI splitter, allows multi-display devices to share one HDMI source. Support the HDMI input signal with 4K x 2K@30Hz and 4K/2K (YCbCr420)@60Hz resolution, and the equalizer at the HDMI input end and the adjustable drive capability at the output end can adapt to wires of different lengths and qualities, making the high-speed TMDS signal always have the best performance

Features:

2. 4-ch HDMI output
3. Compatible with HDMI1.4B and DVI 1.0
4. Data rates up to
5. Built-in input equalizer can automatically adjust the input signal, for getting higher-quality TMDS input
6. Built-in output drive regulator, can automatically adjust the output signal amplitude, for getting higher quality TMDS output

Specifications:

1. Data rates: 3 Gbps
2. HDMI Ports: 1 In 4 Out
3. Compatible: HDMI1.4B and DVI 1.0
4. Supports: 4K/2K@30Hz and 4K/2K(YCbCr420)@60Hz resolution
5. Supports: 10/12/16 BIT color depth

Package Includes:

1 x Waveshare HDMI 4k Splitter, 1 In 4 Out, Share One HDMI source

USB Sound Card, USB Audio Module, Driver-Free, External Audio Converter For Raspberry Pi / Jetson Nano. Recording And Playback Support, Stereo Codec,  .Built-In Microphone And Speaker, Easy Audio Input / Output .Right-click the Audio logo of Raspberry Pi ->Choose USB PnP Audio Device->Play or recording. Right-click USB Device Settings->The left spider is the volume of the speaker and the right one is microphone.

Supported Sampling Rates Including 8K, 11.025K, 12K, 16K, 22.05K, 24K, 32K, 44.1K, And Default 48K (Hz).Supported Systems Including Win7/8/8.1/10, Mac OS, Linux, Android, WinCE .Standard USB 2.0 Port, Driver-Free, Portable Size

Features:

1. Onboard Power indicators for checking working status.
2. Onboard microphone and speaker, support audio input/output
3. Driver-free, plug, and play. Compatible with Windows, Mac OS, Linux, and Android.
4. Standard USB 2.0 port, portable size.

package include:

1 X USB TO audio main unit

1 X USB cable

RP2040-One is a mini RP2040 development board. The onboard PCB USB-A connector makes it plug-and-play instantly. Mini body, 29 x multi-function GPIO pins (20 x via edge pin-out, others via solder points), and the edge of the PCB adopt the castellated design, which can be easily and quickly integrated into your project

Dimensions:

Features:

1. RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
2. Dual-core Arm Cortex M0+ processor, flexible clock running up to 133MHZ
3. The castellated module allows soldering direct to carrier boards
4. USB1.1 with device and host support
5. Low-power sleep and dormant modes
6. Drag-and-drop programming using mass storage over USB
7. Accurate clock and timer on-chip
8. Temperature sensor
9. Accelerated floating-point libraries on-chip

Specifications:

1. Model: RP2040-One
2. On-board Flash memory: 246KB of SRAM, and 4MB
3. 2 x SPI, 2 x UART, 4 x 12-bit ADC, 16 x controllable PWM channels
4. GPIO pins: 29 x multi-function (20x via edge pinout, others via solder points)
5. 8 x Programmable I/O (PIO) state machines for custom peripheral support

Packages Includes:

1 x Waveshare RP2040-One, 4MB Flash MCU Board Based On Raspberry Pi RP2040

This 2-Channel I2C DAC module can output a voltage of 0-10V, which is a standard driver in industrial applications. It can be widely used with most 0-10V devices on markets such as light controllers, inverters, valves, pumps, etc, by Arduino programming.

Besides, this module supports 8 different I2C addresses, which can be changed using the on-board DIP switch, allowing a cascade of 16 devices.

Applications:

Features:

Packages Includes:

1 x DFRobot 2-Channel I2C DAC Module (0-10V)

M.2 To PCIe 4-Ch Expander, Using With PCIe X1 To PCIe X16 Expander

Features:

• Neat Interface Layout Can Effectively Reduce Interface Interference And Ensure Stable Data Transmission
• Expand To 4-Ch PCIe Port Suitable For Application Scenarios That Require Multiple PCIe Ports At The Same Time

Specifications:

1. Model: M2-PCIe-switch-4p
2. Transfer Interface: PCIe X1 Female Port × 4, M.2 Mkey Male Port × 1
3. Operating System: Windows / Linux
4. Dimensions: 80.0 × 22.0mm

1. Model PCIe-x1-to–x16-cable
2. Transfer Interface Pcie X1 Female Port × 1, Pcie X16 Port × 1
3. Power Supply
4. Interface 6pin Header × 2
5. 4pin Header × 1
6. Sata 15pin Header × 1
7. Dimensions 119.80 × 44.83mm

Package Includes:

1 x Waveshare M.2 to PCIe 4-Ch Expander, Using With PCIe X1 to PCIe X16 Expander