Empty PCB for CH423S 24-Bit GPIO Expander Module
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 UGE | PCB For CH423S 24bit GPIO Expander module | 57 EGP | View in store |
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Lowest price recorded: 57 EGP
About this product
An empty PCB for building a CH423S GPIO expander module. The CH423 chip adds 8 bidirectional I/O pins and 16 general-purpose output pins over a two-wire serial interface, with input change interrupt support. Its built-in current drive can statically drive 24 LEDs or dynamically drive up to 128 LEDs, which helps extend microcontroller pins.
Specifications
- Chip
- CH423S
- Bidirectional I/O pins
- 8
- Output pins
- 16
- Interface
- Two-wire serial
- LED drive
- 24 LEDs static / 128 LEDs dynamic
- Board type
- Empty PCB
Frequently asked questions
What is the price of Empty PCB for CH423S 24-Bit GPIO Expander Module in Egypt?
Empty PCB for CH423S 24-Bit GPIO Expander Module currently costs 57 EGP in Egypt.
Where can I buy Empty PCB for CH423S 24-Bit GPIO Expander Module in Egypt?
Empty PCB for CH423S 24-Bit GPIO Expander Module is available from UGE. Compare the offers above to find the best price.
Does the board include the CH423S chip?
No. It is an empty PCB, so the CH423S chip and the other components must be soldered onto the board.
How do I connect it to a microcontroller?
Connect its two-wire serial lines to two microcontroller pins, plus power and ground. Follow the CH423 datasheet for exact pin assignments and device addressing.
