very good product like they said it works with all the logic level board like arduino, esp32, esp8266. it the best.

very good product like they said it works with all the logic level board like arduino, esp32, esp8266. it the best.

very good product like they said it works with all the logic level board like arduino, esp32, esp8266. it the best.

conforme

conforme

conforme

looks good build quality.

looks good build quality.

looks good build quality.

Arrived on time, and in good condition. Works as described, and all parts & instructions were in package.

Arrived on time, and in good condition. Works as described, and all parts & instructions were in package.

Arrived on time, and in good condition. Works as described, and all parts & instructions were in package.

Good quality, everything as expete

Good quality, everything as expete

Good quality, everything as expete

very good

very good

very good

The device work perfectly.

The device work perfectly.

The device work perfectly.

very good product

very good product

very good product

Great addition for an Arduino for MODbus communication. Not yet implemented but looks very good so far.

Great addition for an Arduino for MODbus communication. Not yet implemented but looks very good so far.

Great addition for an Arduino for MODbus communication. Not yet implemented but looks very good so far.

high quality, unfortunately all the ICs have the type number grinded away, so not sure about the schematic

high quality, unfortunately all the ICs have the type number grinded away, so not sure about the schematic

high quality, unfortunately all the ICs have the type number grinded away, so not sure about the schematic