I bought this 4wd arduino uno robot kit. i am confused in wiring this properly, sensor shield is v4.0, can someone help me getting this done?
It appears as if you are
It appears as if you are trying to interface an X3409 SuperBotV2 with a dual regulated IR blast-O-board and a Rev4.08 serial signal modulator. Hard to tell from the pics if it’s a 4.08 or the older 3.04V1.6 modulator but you can tell by the zener polarity where it connects to the main bus. If it’s a 4.08 you’ll need a bi-phase PWM generator like a TL576.4 or TM576.3. Either will work but you need to be careful about polarity because voltage spikes to the decoupling cap on your X3409 could damage the windings on the motor. That’s why most folks use the newer SuperBotV2.1 with more robust rectification protection (RRP).
Hope this helps and remember to wear safety goggles!