Be careful. The power supply must be stabilized and the negative pole must be well grounded. 2.5 - 5 volts recomended. I burned 5 of them until I realized that my power supply was not grounded correctly. Vey good operation, very fast. It has 4 different modes, which are not explained here. There are 4 contucts that you can short them to select mode. The chip is TTP223B. Very good chip. See spect to understand the operation and the 4 different modes.

Be careful. The power supply must be stabilized and the negative pole must be well grounded. 2.5 - 5 volts recomended. I burned 5 of them until I realized that my power supply was not grounded correctly. Vey good operation, very fast. It has 4 different modes, which are not explained here. There are 4 contucts that you can short them to select mode. The chip is TTP223B. Very good chip. See spect to understand the operation and the 4 different modes.

Be careful. The power supply must be stabilized and the negative pole must be well grounded. 2.5 - 5 volts recomended. I burned 5 of them until I realized that my power supply was not grounded correctly. Vey good operation, very fast. It has 4 different modes, which are not explained here. There are 4 contucts that you can short them to select mode. The chip is TTP223B. Very good chip. See spect to understand the operation and the 4 different modes.

Mine had a lot of soldering flux on it, but no problems when using it.

Mine had a lot of soldering flux on it, but no problems when using it.

Mine had a lot of soldering flux on it, but no problems when using it.

It's of good quality It has been successfully tested You can see the attached video for more details

It's of good quality It has been successfully tested You can see the attached video for more details

It's of good quality It has been successfully tested You can see the attached video for more details

buon prodotto per costare così poco, dimensioni molto ridotte

buon prodotto per costare così poco, dimensioni molto ridotte

buon prodotto per costare così poco, dimensioni molto ridotte

Very good product. Really small size which fits very well when you have limited space.

Very good product. Really small size which fits very well when you have limited space.

Very good product. Really small size which fits very well when you have limited space.

Parfaitement bien me convient enormament. Seul bémol : la couleur... elle est bleu.

Parfaitement bien me convient enormament. Seul bémol : la couleur... elle est bleu.

Parfaitement bien me convient enormament. Seul bémol : la couleur... elle est bleu.

llego en buen buen estado y funcionable 100% recomendable. llegó hadta Tuxpan veracruz. República mexicana

llego en buen buen estado y funcionable 100% recomendable. llegó hadta Tuxpan veracruz. República mexicana

llego en buen buen estado y funcionable 100% recomendable. llegó hadta Tuxpan veracruz. República mexicana

just tecd.

just tecd.

just tecd.

bon produit. je recommande

bon produit. je recommande

bon produit. je recommande

it's good and perfect circuit. fast delivery than I expected.good performance.

it's good and perfect circuit. fast delivery than I expected.good performance.

it's good and perfect circuit. fast delivery than I expected.good performance.