LoRa RFM98 Tutorial Ra-02 HopeRF Module Sib Piv: 6 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Hav, ua li cas, cov menyuam? Akarsh nov los ntawm CETech.

Hauv kab lus no hnub no peb yuav kawm paub txog RFM LoRa cov qauv tsim los ntawm HopeRF.

Peb yuav pom dab tsi yog cov yam ntxwv uas RFM module yuav tsum tau muab, nws pinout, sib piv ntawm qhov sib txawv RFM modules muaj nyob rau hauv kev ua lag luam zoo li RFM95 96 97 thiab RFM98.

Peb tseem yuav sib piv RFM98 nrog lwm lub npe nrov LoRa muaj nyob hauv khw xws li Ra-02 ua los ntawm Ai-Thinker lossis RYLR896 los ntawm Reyax.

RFM tus qauv nrov heev vim tus nqi pheej yig thiab muaj nyob hauv ntau zaus sib txawv, tsis zoo li Ra-02. Vim qhov no, koj yuav pom RFM tus qauv hauv ntau yam LoRa raws li cov khoom xws li cov node lossis txawm tias lub qhov rooj.

Kuv tau ua cov vis dis aus qhia txog qhov no, Kuv xav kom koj txheeb xyuas nws.

Kauj Ruam 1: Qhov Chaw Koj Pom Hauv Tutorial

Koj tuaj yeem yuav cov khoom los ntawm cov kab ntawv txuas hauv qab no:

RFM98:

RA-02:

RA-01:

RFM95:

Reyax RYLR896:

Kauj Ruam 2: Tau PCBs rau Koj Txoj Haujlwm Tsim

Koj yuav tsum txheeb xyuas JLCPCB rau xaj PCBs online kom pheej yig!

Koj tau txais 10 qhov zoo PCBs tsim thiab xa mus rau koj lub qhov rooj rau 2 $ thiab qee qhov xa khoom. Koj tseem yuav tau txais luv nqi ntawm kev xa khoom ntawm koj thawj daim ntawv xaj. Txhawm rau tsim koj tus kheej PCB lub taub hau kom yooj yim EDA, ib zaug uas ua tiav xa koj cov ntaub ntawv Gerber mus rau JLCPCB kom tau txais lawv tsim nrog qhov ua tau zoo thiab lub sijhawm hloov pauv sai.

Kauj Ruam 3: Hais txog RFM Module Los Ntawm HopeRF

RFM LoRa cov qauv yog SPI raws LoRa cov qauv.

Lawv muaj 16 tus pin nrog lub suab ntawm 2mm. Lawv muaj qhov sib npaug ntawm lub cev hneev taw thiab tus lej sib nrug zoo li ESP8266 ESP12 tus qauv nto moo. Yog li koj tuaj yeem siv tib lub SMD los ntawm lub qhov txuas nrog ob tus qauv txhawm rau txhawm rau tshem cov pins rau siv nrog lub khob cij lossis tus qauv protoboard.

Koj tuaj yeem pom cov ncauj lus ntxaws ntxaws hauv kab ntawv:

Yog tias koj xav siv RFM module nrog Arduino lossis esp raws pawg thawj coj koj tuaj yeem siv lub tsev qiv ntawv no los ntawm adafruit:

GitHub Library:

Kauj Ruam 4: Sib Piv Ntawm RFM95/96/97/98

Qhov sib txawv tseem ceeb ntawm RFM cov qauv yog tias lawv ua haujlwm ntawm ntau zaus.

Raws li txhua lub tebchaws tsis txhawb nqa kev siv tib lub zaus band dawb koj xav tau siv cov qauv sib txawv hauv lwm lub tebchaws. Koj tuaj yeem pom txog qhov siv dawb band siv hauv koj lub tebchaws los ntawm lub vev xaib no:

RFM95 & RFM96 ob leeg ua haujlwm hauv 868/915 band. Whereas RFM97/98 ua haujlwm hauv 433MHz band.

Muaj lwm qhov sib txawv me me hauv kev nthuav tawm qhov tshwm sim thiab kev nkag siab uas koj tuaj yeem ua tib zoo saib hauv cov lus txuas.

Kauj Ruam 5: RFM95 Vs RA02 Vs RYLR896

Tam sim no txav mus rau qhov sib piv ntawm LoRa cov qauv los ntawm HopeRF, AiThinker thiab Reyax.

Kev sib txuas:

1) RFM module los ntawm HopeRF: SPI

2) Ra-01/2 los ntawm Ai-tus xav: SPI

3) RYLR896 los ntawm Reyax: UART siv AT Commands

Nqi: 1) RFM module los ntawm HopeRF: 4.2 $

2) Ra-01/2 los ntawm Ai-tus xav: 3.7 $

3) RYLR896 los ntawm Reyax: 15 $

Zaus band muaj:

1) RFM module los ntawm HopeRF: 433/868/915MHz

2) Ra-01/2 los ntawm Ai-tus xav: Tsuas yog 433Mhz

3) RYLR896 los ntawm Reyax: 433/868/915MHz

Yooj yim ntawm kev siv tau:

1) RFM module los ntawm HopeRF: Nruab nrab nrog qhov tsim nyog tsim nyog ntawm txuas thiab ntxiv ntawm Radiohead Library

2) Ra-01/2 los ntawm Ai-tus xav: Nruab nrab nrog qhov tsim nyog tus nqi txuas thiab ntxiv ntawm Radiohead Library

3) RYLR896 los ntawm Reyax: Yooj yim nrog 2 UART xov hlau thiab tsis xav tau ib lub tsev qiv ntawv lossis cov haujlwm nyuaj.

Kauj ruam 6: Cov ntsiab lus

Yog li peb tau pom tsis muaj tus yeej tiag tiag uas muaj yeej hauv txhua qhov xwm txheej.

Nws feem ntau yog nyob ntawm qhov xwm txheej siv ntawm koj qhov project/khoom dab tsi module haum rau koj zoo tshaj plaws raws li nws tus nqi thiab cov yam ntxwv raws li tau tham los saum no.

Txawm li cas los xij, Yog tias koj muaj lus thov lossis thov qhov project koj tuaj yeem qhia rau kuv paub hauv kab lus sib tham hauv qab no thiab kuv yuav txiav txim siab qhov tseeb.

Kuv pom zoo kom saib kuv li YouTube channel raws li kuv tau ua ntau LoRa cov yeeb yaj kiab nyob ntawd: