---
product_id: 55510653
title: "4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM"
brand: "olsus"
price: "$U1809"
currency: UYU
in_stock: true
category: "Electronics"
url: https://www.desertcart.uy/products/55510653-4-channel-relay-module-programmable-with-rs485-microcontroller-stm8s103f3-arduino
store_origin: UY
region: Uruguay
---

# 4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM

**Brand:** olsus
**Price:** $U1809
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM by olsus
- **How much does it cost?** $U1809 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/55510653-4-channel-relay-module-programmable-with-rs485-microcontroller-stm8s103f3-arduino)

## Best For

- olsus enthusiasts

## Why This Product

- Trusted olsus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

1, 4 channel relay output2, STM8S103F3 Microcontroller with sdk, it is programmable3, 4 channel Optocoupler4, 4 status LEDs 5, DC input (12V, work with power adapter)6, RS485 port7, Power LED8, User LED9, Reset keyForm Color: BlueMaterial: PCBMax. Load AC:250V 10A, DC:30V 10AInput Voltage: 12VEnglish Manual / Spec: YesDimensions: 3.07 in x 3.19 in x 0.79 in Weight: 2.89 oz (82 g)Packing List1 x 4 Channel Relay Module With Microcontroller

## Features

- 4 Channel Relay Module With Microcontroller
- 4 status LEDs
- 4 channel relay output and reset key
- 4 channel Optocoupler
- STM8S103F3 Microcontroller with sdk, it is programmable

## Images

![4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM - Image 1](https://images-na.ssl-images-amazon.com/images/I/610spgPWTxL.jpg)
![4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM - Image 2](https://images-na.ssl-images-amazon.com/images/I/515Jzo6mMWL.jpg)
![4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM - Image 3](https://images-na.ssl-images-amazon.com/images/I/51IwxpVK9vL.jpg)
![4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM - Image 4](https://images-na.ssl-images-amazon.com/images/I/51drbpr%2BkML.jpg)
![4 Channel Relay Module Programmable With RS485 Microcontroller STM8S103F3 For Arduino PIC AVR ARM - Image 5](https://images-na.ssl-images-amazon.com/images/I/51DO4HOUl1L.jpg)

---

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-16*