==== Semtech Packet Radio==== {{:interfaces:draginopi.jpg?150|Dragino Lora/GPS HAT}}\\ \\ {{:interfaces:draginopigps.jpg?150|Dragino Lora/GPS HAT GPS module}}\\ \\ {{:interfaces:draginopilora.jpg?150|Dragino Lora/GPS HAT LoRa module}}\\ \\ {{:interfaces:draginoarduino.jpg?150|Dragino LoRa Shield for Arduino}}\\ \\ {{:interfaces:draginoarduinolora.jpg?150|Dragino LoRa Shield for Arduino LoRa module}}\\ Semtech design and manufacture packet radio ICs. Some of their designs may also be manufactured by HopeRF. ===ICs=== Two product lines exist, one for sensors which are very low power and one for radio gateways which is where the sensors communicate and have packet data forwarded. ==Sensor Radio== Various semtech radio ICs exist along with the HopeRF clones. NB Cheap sensor radios can use the RF69 IC which is not LoRa compatible. ^Semtech ^ HopeRF IC/RFM ^ FSK kbps ^ LoRa gen ^ LoRa kbps ^ Frequency MHz ^ Market ^ |[[https://www.semtech.com/products/wireless-rf/frequency-shift-keying-fsk/sx1231|SX1231]] | [[https://www.hoperf.com/modules/rf_transceiver/RFM69W.html|RF69/RFM69]] | 300 | N/A | N/A | 433, 868 & 915 | | |SX1272 | RF92/RFM92W | 300 | 1 | 0.3 - 40 | 862 - 1020 | NA/EU | |SX1273 | | 300 | 1 | 1.7 - 40 | 862 - 1020 | | |[[https://www.semtech.com/products/wireless-rf/lora-core/sx1276|SX1276]] | [[https://www.hoperf.com/modules/lora/RFM95.html|RF96/RFM95W]] | 300 | 1 | 0.018 - 40 | 137 - 1020 | GLOBAL | |SX1277 | | 300 | 1 | 1.7 - 40 | 137 - 1020 | | |SX1278 | [[https://www.hoperf.com/modules/lora/RFM98.html|RF98/RFM98W]] | 300 | 1 | 0.018 - 40 | 137 - 525 | CN | |SX1279 | | 300 | 1 | 0.018 - 40 | 137 - 960 | | |SX1261 | | 300 | 2 | 0.018 - 62.5 | 150 - 960 | | |[[https://www.semtech.com/products/wireless-rf/lora-core/sx1262|SX1262]] | | 300 | 2 | 0.018 - 62.5 | 150 - 960 | | |SX1268 | | 300 | 2 | 0.018 - 62.5 | 410 - 810 | CN | LoRa gen 2 chips have a simpler register API compared to gen 1 and use less power. ^ HopeRF RFM ^ Frequency MHz ^ LoRa kbps ^ |[[https://www.hoperf.com/modules/lora/RFM95.html|RFM95W]] | 868, 915 | .293 - 37.5 | |[[https://www.hoperf.com/modules/lora/RFM96.html|RFM96W]]/[[https://www.hoperf.com/modules/lora/RFM98.html|RFM98W]] | 433, 470 | .1465 - 37.5 | |[[https://www.hoperf.com/modules/lora/RFM98.html|RFM98W]] | 169 | .07324 - 9.375 | HopeRF RF modules are named RFM and the ICs named RF. NB RFM95 contains an RF96 IC. ==Gateway== Only Semtech manufacture gateway devices and subsequently they are very high priced and devices containing them are also hard to get (June 2021). ^ Semtech ^ Type ^ | [[https://www.semtech.com/products/wireless-rf/lora-core/sx1301|SX1301]] | Macro Cell | | [[https://www.semtech.com/products/wireless-rf/lora-core/sx1308|SX1308]] | [[https://www.semtech.com/products/wireless-rf/lora-core/sx1308p868gw|Pico cell]] | | [[https://www.semtech.com/products/wireless-rf/lora-core/sx1257|SX1257]] | Frontend | ===Modules=== Two types of module exist using Semtech/HopeRF ICs. Ones that interface directly to the IC and expose the native SPI bus or others that include a microcontroller with a UART interface which provides a high level API. ==SPI modules== SPI modules interface directly to the IC and can be multi-purpose or for the Arduino, RPi, etc. ^ IC or RFM ^ Product ^ Platform ^ Features ^ Data-sheet ^ | SX1276/SX1278 | [[https://web.archive.org/web/20201111221243/https://wiki.dragino.com/index.php?title=Lora/GPS_HAT|Dragino LoRa/GPS HAT]] | RPi | MT3339 GPS and temperature | [[http://www.farnell.com/datasheets/2624999.pdf|Dragino Lora/GPS HAT]] | | SX1276 | [[https://web.archive.org/web/20200219204541/http://wiki.dragino.com:80/index.php?title=Lora_Shield|Dragino LoRa Shield]] | Arduino | 3v3/5v compatible |[[http://www.farnell.com/datasheets/2630874.pdf|Dragino LoRa Shield for Arduino]] | | RFM95W | [[https://www.adafruit.com/product/4074|Adafruit LoRa Radio Bonnet with OLED]] | RPi | 128x32 display | N/A | ==UART modules== UART modules contain an intelligent controller and use a high level API. The API may mimic the HAYES AT modem command set or be original. ^ IC or RFM ^ Product ^ RPi add-on ^ | SX1276 | [[https://docs.rakwireless.com/Product-Categories/WisDuo/RAK811-Module/Datasheet/|RAK RAK811]] | [[https://uk.pi-supply.com/products/iot-lora-node-phat-for-raspberry-pi|Pi Supply / pHAT PIS-1128]] | | SX1262 | [[https://www.ebyte.com/en/downpdf.aspx?id=483|EBYTE E22-230T30S]] | [[https://www.waveshare.com/wiki/SX1262_868M_LoRa_HAT|Waveshare SX1262 868M LoRa HAT]] | | SX1276 | [[https://www.murata.com/en-eu/products/connectivitymodule/lpwa/overview/lineup/type-abz|Murata CMWX1ZZABZ]] | [[https://store.arduino.cc/arduino-mkr-wan-1300-lora-connectivity-1414|ARDUINO MKR WAN 1300]] | ===Resources=== [[https://www.youtube.com/watch?v=Ya-QlEaonLU|Dragino 1 channel LoRa gateway]] [[https://www.youtube.com/watch?v=duwUwXt-hs8|Dragino LoRa node]] [[https://github.com/CongducPham/LowCostLoRaGw|1 channel gateway project]] [[https://web.archive.org/web/20110829202744/http://www.cycleo.net:80/|LoRa historical]] [[https://revspace.nl/DecodingLora|Signal analysis and decoding with SDR]] [[https://semtech.my.salesforce.com/sfc/p/E0000000JelG/a/2R000000HUhK/6T9Vdb3_ldnElA8drIbPYjs1wBbhlWUXej8ZMXtZXOM|LoRa calculator]]