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KRIDA Electronics

2,578 orders since Aug 15, 2014

44 Reviews

Riga, Riga, Latvia

Ships from Latvia.

Custom Work Available

For any question you can contact me directly via WhatsApp: +37126784872

Sale PWM 16A 3500W Triac Leading EDGE Dimmer 50HZ 60HZ

PWM 16A 3500W Triac Leading EDGE Dimmer 50HZ 60HZ

KRIDA Electronics

$42.00 $46.95

Sale PWM 8A AC Light Dimmer Module 50Hz 60Hz TASMOTA

PWM 8A AC Light Dimmer Module 50Hz 60Hz TASMOTA

KRIDA Electronics

$11.92 $14.90

Sale 16 Channel I2C Electromagnetic Relay Module IoT

16 Channel I2C Electromagnetic Relay Module IoT

KRIDA Electronics

$31.96 $39.95

Sale 8CH AC LED Light Dimmer Module Controller Board V3

8CH AC LED Light Dimmer Module Controller Board V3

KRIDA Electronics

$20.76 $25.95

Sale 8 Channel I2C Electromagnetic Relay Module

8 Channel I2C Electromagnetic Relay Module

KRIDA Electronics

$19.96 $24.95

Sale I2C 4CH AC LED Dimmer Module

I2C 4CH AC LED Dimmer Module

KRIDA Electronics

$23.16 $28.95

4CH AC LED Light Dimmer V2 Module Controller Board

4CH AC LED Light Dimmer V2 Module Controller Board

KRIDA Electronics

$15.95

8 Channel I2C Solid State Relay Module V2.0

8 Channel I2C Solid State Relay Module V2.0

KRIDA Electronics

$24.95

Sale I2C MOSFET Trailing Edge AC Dimmer Light

I2C MOSFET Trailing Edge AC Dimmer Light

KRIDA Electronics

$19.96 $24.95

Sale 16 Channel I2C Solid State Relay Module

16 Channel I2C Solid State Relay Module

KRIDA Electronics

$29.56 $36.95

Sale PWM10A 2200W Mosfet Trailing Edge Dimmer @ FREEDS

PWM10A 2200W Mosfet Trailing Edge Dimmer @ FREEDS

KRIDA Electronics

$42.00 $46.95

FreeDS UPSHIELD for PWM16A dimmer Kit

FreeDS UPSHIELD for PWM16A dimmer Kit

KRIDA Electronics

$8.90

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About

My contact information:

Olegs Bugrovs, Anninmuizas bulvaris 56-69, Riga, LV1069, Latvia

Phone: +371 26784872

Email: krida.electronics@gmail.com

KRIDA Electronics's Page KRIDA Electronics's Channel

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Reviews

Review Breakdown

5
13 4
23 3
7 2
1 1
0

Average Ratings

Product: (4.80)

Documentation: (3.77)

Shipping: (4.55)

Communication: (4.36)

Bernd | Aug. 9, 2024

Good product without support

For I2C MOSFET Trailing Edge AC Dimmer Light

I purchased 3 pieces of these I2C dimmer in order to relieve the ESP32 in esphome - Home Assistant. The boards seem to be well designed and nearly perfectly soldered. During Installation I unfortunately noticed, that there is no support for the dimmer in esphome and a custom component is more or less the only solution to write dimm value into ATmega which finally makes the pwm. On github I found some custom component integration files, perhaps written by Mr. Krida, but they are only designed for the 4 channel I2C dimmer, I tried to adopt these h files without big success as my c-programming skills are about 35 years in the past, but communication works, I always get errors like TimerOne.h not installed or similar (but as far as I know the lib is standard lib in esphome) ... however, I already spent too much time for these boards, so my dream of a pretty I2C bus dimmer solution was burst as the seller offers no support and even can't write an answer e.g. like "I offer no support" or similar, apparently too much customers ;-)

Geoff | March 31, 2024

Good product; well made, works perfectly.

For 8 Channel I2C Electromagnetic Relay Module

I'm using this board to control power amplifiers from an ESP32. Easy to drive using Arduino code.

Is it possible to determine the state of the relays using a micro controller? The documentation doesn't address this.

Marcel | Sept. 13, 2023

Very cool, only 4 wires nice!

For 16 Channel I2C Electromagnetic Relay Module IoT

Got some of those boards. I use them with Raspberry Pi4 and Python.
Here is a easy code to switch the relays with 16 Buttons with TKInter GUI:

import tkinter as tk
from smbus2 import SMBus

I2C_ADDRESS = 0x22 # Adjust the address as needed
bus = SMBus(1)

# Set the configuration word to configure all pins as outputs
bus.write_word_data(I2C_ADDRESS, 0x00FF, 0x00FF)

# Initialize relay states (all off, since all bits are HIGH)
relay_states_1to8 = 0x00FF # Byte for relays 1-8
relay_states_9to16 = 0x00FF # Byte for relays 9-16

def toggle_relay(relay_num):
global relay_states_1to8, relay_states_9to16
if relay_num < 8:
relay_states_1to8 ^= (1 << relay_num)
else:
relay_states_9to16 ^= (1 << (relay_num - 8))

# Write to the output registers for all relays
bus.write_word_data(I2C_ADDRESS, relay_states_1to8, relay_states_9to16)

app = tk.Tk()
app.title("Relay Control")

buttons = []
for i in range(16):
button = tk.Button(app, text=f"Relay {i+1}", command=lambda i=i: toggle_relay(i))
button.pack()
buttons.append(button)

app.mainloop()

João | March 18, 2023

Equipamento muito bom, parabéns

For PWM 16A 3500W Triac Leading EDGE Dimmer 50HZ 60HZ

Estou utilizando o PWM 16A 3500W como gestor de excedentes, funcionou muito bem e voltaria a comprar sem problemas

Kestutis | Nov. 21, 2022

Nice board

For WIFI 8 Channel Electromagnetic Relay Module

Board itself looks well made and works as expected.
Converting to Tasmota took more time than expected, so leaving some tips for others
Somehow Wemos didn't get into flashing mode automatically, so I used serial flasher and had to ground D3 while connecting power, to get into flash mode.
Tasmota does not PCF8574A out of the box, so need to compile your own binary - https://tasmota.github.io/docs/PCF8574/ Issue is that default driver does not support I2C address of 0x27, so need to change xdrv_28_pcf8574.ino for yourself. There are multiple ways this can be achieved, I changed '7' to '8' in line 114 to include 0x27 into scan - https://github.com/arendst/Tasmota/blob/development/tasmota/tasmota_xdrv_driver/xdrv_28_pcf8574.ino#L114
Once you get custom firmware onto the device, use Generic module type, set D1- SCL, D2 - SDA and after a restart, you should get the "Configure PCF8574" page mentioned in the documentation. Had to check the "Invert Ports" checkbox for 'normal' operation.

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