Is there any documentation on how to interface with this?

https://www.hackster.io/makerrelay/esp8266-wifi-5v-1-channel-relay-delay-module-iot-smart-home-e8a437 Hope this helps you. take care.

I need a device, that when commanded, will send an electrical signal twice in a row. I want to wire it to a remote start which requires two button pu?

If this button you need to control is a normally open pushbutton, you would wire the normally open relay contacts across the terminals of that pushbutton, and when you activate the relay you'll get one "press" of the button. You would then write code equivalent to: activate, delay, deactivate, delay, delay, activate, delay, deactivate. which would give you your two button presses. Experiment a little bit on how much delay is required, start with each occurrence of the word "delay" above being a 200ms delay.

Can i use this as a switch with 12v 1amp like sonoff sv

The board requires 5 volts to operate, That said the contacts will switch 12 volts 1 amp.

All I need is a WiFi relay that alerts me when a float switch closes is there such a thing?

This device is a relay controller, meaning it has an "output" signal. You need a device with an "input" signal. There are lots of other ESP8266 boards out there with "input" signals on board, and which could be programmed to do what you want. You can buy those for about five bucks apiece, plus power. You could run these off a USB cable with an AC/USB adapter "wall wart".

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HiLetgo ESP8266 5V WiFi Relay Module TOI APP Control for Smart Home Automation System

HiLetgo ESP8266 5V WiFi Relay Module TOI APP Control for Smart Home Automation System

Product ID: 44238856

Details

Connector Type
Through Hole
Contact Material
Silver
Contact Type
Normally Open
Current Rating
10 A
Mounting Type
PCB Mount

📱Control via mobile app & WiFi

📶ESP8266 WiFi module onboard

🔌10A high-current relay switch

₨295

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Description

⚡ Power your smart home with instant WiFi relay control — don’t get left offline!

CERTIFIED RELIABILITY - CE and FCC certified for peace of mind in safety and performance.
ROBUST POWER HANDLING - Supports 10A at 250V AC / 30V DC — perfect for heavy-duty home automation tasks.
COMPACT PCB MOUNTABLE - Sleek design fits effortlessly into your DIY projects or professional setups without clutter.
PLUG PLAY MOBILE CONTROL - Easily manage your relay remotely through a dedicated app, putting smart control in your pocket.
SEAMLESS MULTI CLIENT CONNECTIVITY - Connect up to 5 devices simultaneously in AP mode for ultimate smart home control.

The HiLetgo ESP8266 5V WiFi Relay Module integrates a powerful ESP8266 WiFi chip with a 10A relay, enabling remote switching of high-current devices via mobile app control. Designed for smart home automation, it supports up to 5 simultaneous client connections in access point mode, is PCB-mountable, and meets CE and FCC standards. Ideal for professionals and DIY enthusiasts looking to add reliable, wireless relay control to their IoT projects.

Specifications

ASIN	B071LMSLRW
Best Sellers Rank	#945,117 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,022 in Electrical Outlet Switches
Brand Name	HiLetgo
Coil Voltage	5 volts
Connector Type	Through Hole
Contact Current Rating	10 A
Contact Material	Silver
Contact Type	Normally Open
Current Rating	10 A
Customer Reviews	3.6 3.6 out of 5 stars (52)
Manufacturer	HiLetgo
Maximum Switching Current	10 A
Maximum Switching Voltage	30 volts
Minimum Switching Voltage	30 volts_of_direct_current
Model	3-01-1409
Mounting Type	PCB Mount
Number of Terminals	2
Operation Mode	Automatic
Part Number	3-01-1409
Specification Met	CE, FCC
Unit Count	1 Count
Wattage	50 watts

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₨295

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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