Relay Board for Arduino for Less Than $8.
Intro: Relay Board for Arduino for Less Than $8.
Hi friends, today I am going to tell you how to make a relay board for Arduino for less than $8. In this circuit, we are not going to use any IC or transistor.So, let's do it!!!
STEP 1: Gather the Parts-
STEP 2: Gather the Tools-
Soldering Gun.
STEP 3: Draw the Schematic-
STEP 4: Solder the Components As Shown in Circuit-
STEP 5: Comparison-
Thank you!!!
4 Comments
soardr 8 years ago
Thank you for making me alert about the danger. But, when I connected the relay board to my Arduino, I saw that nothing happened to my Arduino. I connected it many times but, nothing happened.
JemChalweDoPorzygu 8 years ago
It is risky to connect that relay board to your Arduino.
Arduino pins are 40mA MAX.
Relay can draw up to 100mA. That's why transistors are obligatory!!!!
jvaughn2100 8 years ago
soardr 8 years ago
If you will click the image, the picture will appear with a box around it. Move the mouse pointer over the box to get it's name.