2 channel NPN breakout board for ESP-01

Name: 2 channel NPN breakout board for ESP-01
SKU: 18051
Price: 21.95 USD
Availability: Discontinued

2 Channel ESP-01 powered 12/24v PWM dimmer

Designed by Creative Electronics in Netherlands

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2 channel NPN breakout board for ESP-01 1

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2 Channel ESP-01 powered 12/24v PWM dimmer

What is it? A 2 Channel 12/24v dimmer (up to 40v), controlled by PWM, over WiFi. The dimmer channels are powered through TIP122 darlington transistors. The ESP-01 gives you a range from 0-1023 for pr…

What is it?

A 2 Channel 12/24v dimmer (up to 40v), controlled by PWM, over WiFi. The dimmer channels are powered through TIP122 darlington transistors. The ESP-01 gives you a range from 0-1023 for pretty much stepless dimming/controlling. PSU connector is a standard 5.5x2.1 DC jack.

Why did you make it?

I needed a WiFi enabled dimmer for 2 12/24v halogen spotlights.

What makes it special?

This kit comes with a step-down converter, so you just have to plug in the 12/24v supply. It is then converted to the 3.3v logic supply for the ESP01.

Just plug in the 12/24v PSU, attach your LED strips/Halogen bulbs/Solenoids/whatever 12/24v thing that needs PWM, and you are ready to go.

Technical Spec's

2x TIP122 Min Input Voltage 6,5V Max Input Voltage 40v Onboard SMPS to 3.3v Logicpower

Options

Comes as a fully assembled/soldered board. If you choose to include an ESP-01, it comes factory bootloaded, I don't provide a code. Optionally a 3D printed enclosure is provided in Black PLA material.

Extra information?

The 2 channels are connected to GPIO 1 and GPIO 3. Due to the nature of the ESP01 bootloader, GPIO 3 will briefly be pulled high on start up. And will turn low after booting/connecting WiFi. So make sure this is not an issue for your setup. This only happens once during power up though. In my case, on start up, one of the halogen lights comes on for about 1 second before turning off again.