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CH341A USB to SPI I2C IIC UART TTL ISP Serial Adapter Module

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USB Interface Module for everyday users

The CH341A USB to SPI I2C IIC UART TTL ISP Serial Adapter Module is a value-for-money usb interface module designed for everyday users. It features Model No. / Name: CH341A and Operating Voltage (V): 3.3 to 5.

₹1,135
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Total: ₹1,135
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 25 Aug8 Sept
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Quick Specs

Model No. / Name: CH341A
Operating Voltage (V): 3.3 to 5
Application: BIOS flashing, EEPROM programming, UART debugging
Compatibility: multiple EEPROM chips
Length (mm): 75
Width (mm): 32

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-2696737Category: USB Interface Module

About This Product

The CH341A USB to SPI I2C IIC UART TTL ISP Serial Adapter Module is a value-for-money usb interface module designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Model No. / Name: CH341A
  • Operating Voltage (V): 3.3 to 5 — works with standard household power
  • Application: BIOS flashing, EEPROM programming, UART debugging — plenty of room for files, apps, and media
  • Compatibility: multiple EEPROM chips — plenty of room for files, apps, and media
  • Length (mm): 75
  • Width (mm): 32
  • Weight (g): 13
  • Shipping Weight: 0.014 kg

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

The CH341A USB to SPI/I2C/IIC/UART/TTL/ISP Serial Adapter Module is a compact and versatile programming tool, ideal for developers and electronics enthusiasts. It supports multiple serial communication protocols, making it perfect for debugging, flashing firmware, and serial interfacing of microcontrollers and memory chips. With a plug-and-play USB interface, it allows easy conversion between USB and TTL, I2C, or SPI. Suitable for BIOS flashing, EEPROM programming, and embedded development, this module simplifies interfacing with devices like Arduino, Raspberry Pi, and more. It is an essential tool for firmware engineers, hobbyists, and reverse engineers alike.

Note: Images for Referance only, the actual product may vary in terms of Colour

Features:

  1. Supports SPI, I2C, IIC, UART, TTL, and ISP protocols.
  2. Based on reliable CH341A chip for stable performance.
  3. USB 2.0 full-speed interface for easy PC connectivity.
  4. Compatible with EEPROM and BIOS flash programming.
  5. Ideal for microcontroller and memory interfacing.
  6. Wide system compatibility (Windows/Linux support).
  7. Compact, lightweight, and easy to use.
  8. No external power required – powered via USB.

Package Includes:

1 x CH341A USB to SPI I2C IIC UART TTL ISP Serial Adapter Module

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.