45 lines
1.7 KiB
Markdown
45 lines
1.7 KiB
Markdown
# Compatible codecs for Easy LoRaWAN Cloud
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The codecs will be used in this guide: https://iotthinks.com/add-a-lorawan-device-in-to-easy-lorawan-cloud/
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- The codecs in this folder is COMFIRMED to work with Easy LoRaWAN Cloud
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The below sample codecs are from external repositores and required to be fixed before using in Easy LoRaWAN Cloud.
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- From TTN: https://github.com/IoTThinks/lorawan-devices/tree/master/vendor
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- From Dragino: https://www.dropbox.com/sh/sa4uitwn6xdku9u/AACUA890oj5dl8rETYO2icdBa?dl=0
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- From RAK Wireless: https://github.com/RAKWireless/RAKwireless_Standardized_Payload
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A valid codec for Easy LoRaWAN Cloud is below:
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```
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// Decode uplink function.
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//
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// Input is an object with the following fields:
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// - bytes = Byte array containing the uplink payload, e.g. [255, 230, 255, 0]
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// - fPort = Uplink fPort.
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// - variables = Object containing the configured device variables.
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//
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// Output must be an object with the following fields:
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// - data = Object representing the decoded payload.
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function decodeUplink(input) {
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var bytes = input.bytes;
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var BatV = (bytes[0] << 8 | bytes[1]) / 1000 + 0.277;
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var PayVER = bytes[2];
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// If AT+DATAUP=1, PayloadCount=1 byte, payload#=1 byte
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var Temp = (bytes[3] << 8 | bytes[4]) / 10;
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var Humid = (bytes[5] << 8 | bytes[6]) / 10;
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return {"data": {"BatV":BatV, "PayVER":PayVER, "Temp":Temp, "Humid":Humid}};
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}
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// Encode downlink function.
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//
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// Input is an object with the following fields:
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// - data = Object representing the payload that must be encoded.
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// - variables = Object containing the configured device variables.
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//
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// Output must be an object with the following fields:
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// - bytes = Byte array containing the downlink payload.
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function encodeDownlink(input) {
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return {bytes: []};
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}
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```
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