Taha Yasin Kaya

TURKEY • + Follow

Engineer

BELGIUM
- 0
- 0
gurelvural

TURKEY
- 0
- 0
2

Components

	ttgo-tcall lilygo	x 1
	1432868-1 TE Connectivity Potter & Brumfield Relays	x 4
	S8050 TO-92 8050 TO92	x 4
	EL817S1(A)(TU)-V Everlight Electronics Co Ltd	x 4
	TP4056 5V Mini USB 1A Lithium Battery Charger Module	x 1
	SparkFun buzzer (12mm)	x 1

Tools, APP Software Used etc.

arduino IDE

Arduino

Description

Ttgo-Tcall Relay Modül

I designed this circuit for my own garden. The purpose of the circuit is to remotely turn on and off the connected system, and to perform events such as working in the desired time interval and time. As an extra, it is to learn the temperature and humidity in the environment thanks to the dht11 sensor. Thanks to the Ttgo T-call module, which performs the main operations in the circuit, remote control can be provided via internet, call and sms.

Thanks to 4 relays added to the circuit, it is possible to remotely control 4 different devices at the same time.

The relays are electrically disconnected from the circuit with an optacoupler to protect the circuit against any failure.

Since I do not use the circuit commercially, I control it myself thanks to the blynk software. It is also possible to control with dtmf and sms.

sample video

https://drive.google.com/file/d/1GHdiD9hlgI8VdD6ws_jHHLtSRlyEOYEj/view?usp=sharing

Code

kod

ttgo_relay.rar

Schematic and Layout

şema

pcb.rar

Download Gerbers Download BOM(Bill of materials)

Sep 03,2021

3,196 views

Ttgo-Tcall Relay Modül

Thanks to this pcb, you will be able to control the system you want remotely. As an extra, you will be able to see the temperature and humid

3196

Published: Sep 03,2021

Standard PCB

Download Gerber file 45

BOM(Bill of materials)

PCBWay Donate 10% cost To Author

File Last Updated: 2026/04/24 (GMT+8)

File update record

2026-04-2414:10:27

Gerber file is updated.

Only PCB

Add to cart

Project images are for reference only. Actual production is based on the manufacturing files on the project page. Please review the designer's notes (e.g., PCB thickness) and select the appropriate options. PCBWay is not responsible for issues caused by unsuitable parameter selections.
For more important ordering information, please refer to Read More

Copy this HTML into your page to embed a link to order this shared project

Copy