Introduction: DIY TENS Machine

Bill of Materials:


-Two Channel Relay.

-DC Booster.

-Flex Sensors.

Step 1: Step One

Connect DC Booster to Arduino.

-Connect ground to the negative "IN" on the DC booster.

-Connect 3V to the positive "IN" on the DC booster.

Step 2: Step 2. Connect Relay to DC Booster

Connect the DC booster to the Relay.

-Connect the DC booster "OUT" positive to the Relay.

-Connect the DC booster "OUT" negative to the TENS EMS pad.

Step 3: Step 3: Connect Relay to Arduino.

Connect Relay to Arduino.

You can control the Relay with Arduino Code.

Examples here:

Step 4: Step 4: Connect Flex Sensors and LED's to Arduino.

Step 5: