diff --git a/main.cpp b/main.cpp index f33d482..9948412 100644 --- a/main.cpp +++ b/main.cpp @@ -6,32 +6,49 @@ so the copyright for this code belongs to Heltec Automation. Any additional changes are free-to-use, but at your own risk. */ -#include // for platform.io, remove when using Arduino IDE +#include // needed for platform.io +#include "mesh.pb.h" + +// ToRadio Incoming; // not used right now // Radio settings for meshtastic channel "Default" @ "very long range (but slow)". Will not work with other settings or channels. -#define RF_FREQUENCY 865200000 // Hz +// #define RF_FREQUENCY 865200000 // Hz -- see "CH0" in Meshradio.h #define TX_OUTPUT_POWER 22 // dBm -#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved] -#define LORA_SPREADING_FACTOR 12 // [SF7..SF12] +#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: 62.5kHz, 4: 41.67kHz, 5: 31.25kHz, 6: 20.83kHz, 7: 15.63kHz, 8: 10.42kHz, 9: 7.81kHz] +// FYI: +// const RadioLoRaBandwidths_t Bandwidths[] = { LORA_BW_125, LORA_BW_250, LORA_BW_500, LORA_BW_062,LORA_BW_041, LORA_BW_031, LORA_BW_020, LORA_BW_015, LORA_BW_010, LORA_BW_007 }; + + +#define LORA_SPREADING_FACTOR 12 // [SF5..SF12] #define LORA_CODINGRATE 4 // [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] #define LORA_PREAMBLE_LENGTH 32 // Same for Tx and Rx #define LORA_SYMBOL_TIMEOUT 0 // Symbols #define LORA_FIX_LENGTH_PAYLOAD_ON false #define LORA_IQ_INVERSION_ON false +#define LORA_CHAN_NUM 0 // Channel Number (meshtastic specific) #define RX_TIMEOUT_VALUE 1000 -#define BUFFER_SIZE 512 // max payload = maximum of the SX12xx +#define BUFFER_SIZE 0xFF // max payload (see \cores\asr650x\device\asr6501_lrwan\radio.c --> MaxPayloadLength) #define ID_BUFFER_SIZE 32 char mPacket[BUFFER_SIZE]; +#define HW_VERSION_EU865 // define your region _before_ including MeshRadio.h ! +#include "MeshRadio.h" +// initializing ChannelSettings with valid data... You can modify it to your settings here. Do not use ModemConfig. Change bw/sf/cr instead! +// "Bandwidth" is the index of the array Bandwidths (see above), not the actual bandwidth! Index is starting with 0. +ChannelSettings_psk_t mPSK; // not used +ChannelSettings ChanSet={ TX_OUTPUT_POWER, ChannelSettings_ModemConfig_Bw125Cr48Sf4096, mPSK, "Default", + LORA_BANDWIDTH, LORA_SPREADING_FACTOR, LORA_CODINGRATE, LORA_CHAN_NUM }; + uint32_t receivedID[ID_BUFFER_SIZE]; -int receivedCount = 0; +int receivedCount = -1; static RadioEvents_t RadioEvents; void OnTxDone( void ); void OnTxTimeout( void ); void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ); +void ConfigureRadio( ChannelSettings ChanSet ); typedef enum { @@ -46,7 +63,7 @@ uint32_t x; // re-used variable of type uint32_t, used in onRxDone() bool found; // used in onRxDone() -#define SILENT // delete or change to VERBOSE if serial output is needed +#define NOTSILENT // delete or change to VERBOSE if serial output is needed void setup() { #ifndef SILENT @@ -56,40 +73,33 @@ void setup() { RadioEvents.TxDone = OnTxDone; RadioEvents.TxTimeout = OnTxTimeout; RadioEvents.RxDone = OnRxDone; - Radio.Init( &RadioEvents ); - Radio.SetChannel( RF_FREQUENCY ); - Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH, LORA_SPREADING_FACTOR, LORA_CODINGRATE, - LORA_PREAMBLE_LENGTH, 0, true, 0, 0, 0, 20000 ); - - Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR, LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH, - LORA_SYMBOL_TIMEOUT, 0 , 0, true, 0, 0, 0, true ); - - state=RX; // initial mode = receive + ConfigureRadio( ChanSet ); #ifndef SILENT Serial.println(".done!\n"); #endif + state=RX; // initial mode = receive } void loop() { switch(state) { - case TX: + case TX: #ifndef SILENT Serial.print("Sending packet.."); Serial.printf("(Size: %i)..", rxSize); #endif Radio.Send( (uint8_t *)mPacket, rxSize ); - state=LOWPOWER; - break; - case RX: - Radio.Rx( 0 ); // receive mode with no time-out - state=LOWPOWER; - break; - case LOWPOWER: - lowPowerHandler(); // put SoC to sleep, wake-up at LoRa receive - break; + state=LOWPOWER; + break; + case RX: + Radio.Rx( 0 ); // receive mode with no time-out + state=LOWPOWER; + break; + case LOWPOWER: + lowPowerHandler(); // put SoC to sleep, wake-up at LoRa receive + break; default: break; } @@ -98,10 +108,10 @@ void loop() void OnTxDone( void ) { - #ifndef SILENT + #ifndef SILENT Serial.println(".done!"); #endif - state=RX; // switch to receive mode + state=RX; // switch to receive mode } void OnTxTimeout( void ) @@ -163,9 +173,9 @@ void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) } if (!found){ state=TX; // will repeat package + (receivedCount < (ID_BUFFER_SIZE - 1) ) ? receivedCount++ : receivedCount = 0; // if counter = max, overwrite first entry in list, reset counter receivedID[receivedCount] = x; // add ID to received list - (receivedCount < (ID_BUFFER_SIZE - 1) ) ? receivedCount++ : receivedCount = 0; // if counter = max, reset counter. New entries will overwrite. - } + } else{ #ifndef SILENT Serial.println("PacketID known, will not repeat again."); @@ -173,3 +183,18 @@ void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) state = RX; // wait for new package } } + +void ConfigureRadio( ChannelSettings ChanSet ) +{ + uint32_t freq = (CH0 + CH_SPACING * ChanSet.channel_num)*1E6; + + Serial.printf("\nSetting frequency to: %i ..",freq ); + + Radio.SetChannel( freq ); + Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, ChanSet.bandwidth, ChanSet.spread_factor, ChanSet.coding_rate, + LORA_PREAMBLE_LENGTH, false, true, false, 0, false, 20000 ); + + Radio.SetRxConfig( MODEM_LORA, ChanSet.bandwidth, ChanSet.spread_factor, ChanSet.coding_rate, 0, LORA_PREAMBLE_LENGTH, + LORA_SYMBOL_TIMEOUT, false , 0, true, false, 0, false, true ); + +}