June 1, 2025
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Tag: TSIR04B

TSIR04B – 4 Channel Outputs- 4 optically Isolated Inputs Wi-Fi Smartphone Relay

BuildCircuit03 mins

TSIR04B is similar to TSIR04. We have removed the OLED display and put the relay board in a plastic enclosure. This is a TSIR04B Wi-Fi version relay board with optically isolated inputs and temperature sensor port. You can easily control this relay board by your computer or smartphone using Wi-Fi. The communication method also can be changed easily. Replace…

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TSIR04B – 4 Channel Outputs- 4 optically Isolated Inputs Bluetooth Smartphone Relay

BuildCircuit04 mins

TSIR04B is similar to TSIR04. In this device, we have removed the OLED display and put the relay board in a plastic enclosure. This is a TSIR04B Bluetooth version relay board with optically isolated inputs and temperature sensor port. You can easily control this relay board by your computer or smartphone using Bluetooth. The communication way…

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