RF 433MHZ Xov Tooj Cua Siv HT12D HT12E - Ua Rf Kev Tswj Chaw Taws Teeb Siv HT12E & HT12D Nrog 433mhz: 5 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Hauv cov lus qhia no kuv yuav qhia koj yuav ua li cas RADIO chaw taws teeb tswj siv 433mhz tus xa xov txais tus qauv nrog HT12E encode & HT12D decoder IC. thiab HT12D (DECODER) thiab ib khub ntawm Rf modules ntawm 433 Mhz.

Kauj Ruam 1: Yam Koj Yuav Tsum Tau Ua

HT12E: HT12D: RF 433mhz: 3 cov nyees khawmIC HT12DIC HT12EHearders (txiv neej lossis poj niam nws tsis quav ntsej) 3 tus tiv thaiv nrog tus nqi los ntawm (100 txog 330) ohms3 coj ib qho xim 3mm ntawm txoj kab uas hla (me me) 1 Megaohm resistor rau IC ntawm transmitter (TSEEM CEEB) 68K lossis tus neraly resistor tus nqi ntau heev rau tus txais (TSEEM CEEB) 3 laub khawmHearders (txiv neej lossis poj niam nws tsis quav ntsej) 3 resistors nrog tus nqi los ntawm (100 txog 330) ohms3 leds yam xim 3mm ntawm txoj kab uas hla (me me) 1 Megaohm resistor rau IC ntawm tus xa tawm (TSEEM CEEB) 68K lossis tus nqi neraly resistor heev rau tus txais (TSEEM CEEB)

Kauj ruam 2: Txheej txheem cej luam

Tus xa xov hluav taws xob RF nrog thiab tus kav hlau txais xov zoo tuaj yeem xa cov ntaub ntawv mus txog 100m (sab nraum zoov thiab tsis muaj osbtacles). Kev ua haujlwm voltage ntawm RF transmitter yog: (3.3v - 5 v) Ua haujlwm voltage ntawm RF tus txais yog: (5v - 9v).

Kauj Ruam 3: Ua Tus Kws Tshaj Lij

Lub zog ua haujlwm ntawm RF tus xa tawm yog: (3.3v - 5 v) PINOUT NTAWM HT12E IC (ENCODER) Pin 1-8: Kev teeb tsa tus neeg txais kev taw qhia, nws txhais tau tias nws tuaj yeem hloov pauv chaw nyob rau kev sib tham nrog tus kheej yog xav tau 9. VSS txuas nrog GND10-13. AD hauv cov pins no yog rau xa cov ntaub ntawv ntawm 3 khoom (hauv peb kis mus rau tus txais) 14. Kev xa mus, nws tuaj yeem ua tiav txuas tus pin no rau GND15-16. Hauv cov chaw nres nkoj no nws yuav tsum tso "oscillation resistor" tseem ceeb heev siv tus nqi 1 M ohm17. Tus pin no yuav tsum txuas nrog Cov ntaub ntawv tus pin ntawm peb 433 Mhz RF transmitter.18. Tus pin no txuas nrog VCC lossis peb lub davhlau ya nyob twg zoo ntawm peb lub zog lossis roj teeb

Kauj Ruam 4: Ua Tus Txais

PINOUT NTAWM HT12D IC (DECODER) 1-8. Txuas nrog gnd kom pab tau kev sib txuas lus nrog HT12E9. VSS tus pin no mus rau GND.10-13. "AD" IC siv tus pin no rau cov ntaub ntawv tso tawm uas tau xa nrog tus xa tawm, hauv peb qhov teeb meem coj los qhia qhov tau txais cov ntaub ntawv thiab tso tawm ncaj qha rau txhawm rau txuas txuas lossis txhua yam koj xav tau. 14. "DIN" tus pin no txuas nrog DATA ntawm peb 433 Mhz RF tus txais. 15-16. Hauv cov chaw nres nkoj no txuas nrog tus tiv thaiv nrog tus nqi ntawm 68 k ohms lossis tus nqi ze heev xws li 70 k lossis 60 k (TSEEM CEEB: Tsis txhob hloov tus nqi ntawm tus tiv thaiv no yog tias koj ua rau koj lub Circuit nws tsis ua haujlwm). 17. Tsis muaj kev sib txuas. 18. tus pin no mus rau VCC lossis qhov zoo ntawm peb lub zog siv

Kauj Ruam 5: Tso Tawm Demo

Rau qhov tsim tawm thov xa cov duab muab thiab Ua tsaug rau pom kuv cov lus qhia!