Hello friends, it would be very helpful if the pin assignment were in paper form. It is difficult to use without a wiring diagram. Best regards. Nǐ hǎo péngyǒu rúguǒ zhēnjiǎo fēnpèi wèi zhǐzhì xíngshì, jiāng fēicháng yǒu bāngzhù. Méiyǒu jiēxiàn tú hěn nán shǐyòng. Zuì hǎo de zhùfú.