105 lines
2.8 KiB
JavaScript
105 lines
2.8 KiB
JavaScript
// Decode decodes an array of bytes into an object.
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// - fPort contains the LoRaWAN fPort number
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// - bytes is an array of bytes, e.g. [225, 230, 255, 0]
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// - variables contains the device variables e.g. {"calibration": "3.5"} (both the key / value are of type string)
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// The function must return an object, e.g. {"temperature": 22.5}
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function Decode(fPort, bytes, variables) {
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// O5 Door contact sensor
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if (fPort === 4) {
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return [
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{
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led_state: bytes[0]===0 ? "Off":"On",
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mtm_code_1: bytes[1],
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mtm_code_2: bytes[2],
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hw_code: bytes[3],
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battery_level: bytes[4]+"%",
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size_value: bytes[5],
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door_state: bytes[6] === 1 ? "Closed": "Open",
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}
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];
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}
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// heart-beat of O5
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else if (fPort === 5) {
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return [
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{
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led_state: (bytes[0] & 0x7f) === 0 ? "Off" : "On",
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battery_level: bytes[1] + " %",
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}
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];
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}
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// R4 soap/sanitizer sensor
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else if (fPort === 7) {
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return [
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{
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led_state: bytes[0]===0 ? "Off":"On",
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mtm_code_1: bytes[1],
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mtm_code_2: bytes[2],
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hw_code: bytes[3],
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battery_level: bytes[4]+"%",
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size_value: bytes[5],
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measure_tech:bytes[6] === 0? "Capacitive":"Other",
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liquid_level_event: bytes[7] === 0? "Liquid Detected":"No Liquid",
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}
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];
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}
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// R4 soap/sanitizer heart-beat
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else if (fPort === 8) {
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return [
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{
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led_state: (bytes[0] & 0x7f) === 0 ? "Off" : "On",
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battery_level: bytes[1] + " %",
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}
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];
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}
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// R1D dual roll toilet paper sensor
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else if (fPort === 57) {
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return [
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{
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led_state:bytes[0]===0 ? "Off":"On",
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mtm_code_1:bytes[1],
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mtm_code_2:bytes[2],
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hw_code:bytes[3],
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battery_level:bytes[4]+"%",
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size_value:bytes[5],
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distance_1_mm:bytes[6]*256+bytes[7],
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distance_2_mm:bytes[8]*256+bytes[9],
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distance_unit: "mm",
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}
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];
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}
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// R1D, Heart-beat
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else if (fPort === 58) {
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return [
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{
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led_state: (bytes[0] & 0x7f) === 0 ? "Off" : "On",
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battery_level: bytes[1] + " %",
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}
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];
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}
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// R5 waste bin sensor
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else if (fPort === 11) {
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return [
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{
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led_state:bytes[0]===0 ? "Off":"On",
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mtm_code_1:bytes[1],
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mtm_code_2:bytes[2],
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hw_code:bytes[3],
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battery_level:bytes[4]+"%",
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size_value:bytes[5],
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distance_mm: bytes[6]*256 + bytes[7],
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distance_unit: "mm",
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}
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];
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}
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// R5, Heart-beat
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else if (fPort === 12) {
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return [
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{
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led_state: (bytes[0] & 0x7f) === 0 ? "Off" : "On",
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battery_level: bytes[1] + " %",
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}
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];
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}
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} |