Relay Features
5V/12V/24V 1 Channel Relay Module with Optocoupler Isolation High and Low Trigger(Red Board)

1.the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V / 10A, DC 30V / 10A;
2.SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA;
3.the module voltage 5V, 12V, 24V to choose from;
4.the module can be set high or low triggered by jumper;
5.fault-tolerant design, even if the control line is broken, the relay will not operate;
6.power indicator (green), relay state indicator (red)
7.interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient
8. module size: 50mm * 26mm * 18.5mm (L * W * H)
9. has 4 mounting bolts holes, hole 3.1mm, 44.5mm * 20.5mm spacing


Dimmer Features
AC PWM Dimming Dimmer Governor Motor Speed Controller Voltage Regulating Regulator Thyristor Isolation Module I/O Output
Description: Thyristor module is completely isolated from the input and output optocouplers, and can be used safely when the weak current is completely isolated. It uses the I/O port output from MCU to adjust the duty cycle to change the 220V AC voltage to achieve the dimming speed regulation power, etc.
Parameters:
1>.Product Name:AC 220V Thyristor Isolation Module
2>.Size:56*24*21mm
3>.Control Voltage: DC 3.3V-5.0V
4>.Load Working Voltage: AC 220V
5>.Load Output: AC 220V
6>.Load Current: 3A(Max)
7>.PWM Control Frequency: 1Hz 500Hz
8>.Duty Cycle:0 100%
9>.Working Temperature range:-40° 85°
10>.Working Humidity range:0%-95%RH Key core code: Such as controlling the brightness of the lamp: While(1) { PWM++; If(PWM==PWM_set) P1^0=0; //The larger the PWM_set, the brighter the light If( PWM>=10) {P1^0=1;PWM=0; } }
Using Steps:
1>.Write the complete code according to MCU such as Arduino,Raspberry Pi,AVR,ARM,STM32 and so no.
2>.Connect control power supply 3.3V 5V for module.
3>.Connect Load Working Voltage at ‘N’ and ‘L’.
4>.Connect Load such as lamp or motor.
5>.Connect MCU to get PWM signal.
6>.Turn ON power for module and use module.
Note:
1>.Please connect load before PWM adjust;
2>.It is also possible to use a signal generator to control the module, but it must meet the frequency requirements;
3>.Wire cannot be reversed.Otherwise the module will be damaged. Arduino Sample Code is int led_pin = 6; void setup() { //Declaring LED pin as output pinMode(led_pin, OUTPUT); } void loop() { //Fading the LED for(int i=55; i for(int i=255; i>55; i--){ analogWrite(led_pin, i); delay(20); } }