diff --git a/src/main.cpp b/src/main.cpp index f3c104a..bc3dd76 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1,16 +1,22 @@ #include #include "config.h" -// CONFIGURATION: change values in config.h ! +// CONFIGURATION: +// Change RegionCode, Frequency, Speed in config.h ! #define VERBOSE // define to SILENT to turn off serial messages -#define BLINK // define to NOBLINK to turn off LED signaling -#define NO_OLED // define to NO_OLED to turn off display - // OLED supported for cubecell_board_Plus (HTCC-AB02) and cubecell_gps (HTCC-AB02S) +#define BLINK // define to NOBLINK to turn off LED signaling +#define NO_OLED // define to NO_OLED to turn off display + // OLED supported for cubecell_board_Plus (HTCC-AB02) and cubecell_gps (HTCC-AB02S) +// :CONFIGURATION -MeshPacket thePacket; -ChannelSettings ChanSet; +static MeshPacket thePacket; +static ChannelSettings ChanSet; static RadioEvents_t RadioEvents; -uint32_t lastreceivedID = 0x00000000; +static TimerEvent_t CheckRadio; +static uint32_t lastreceivedID = 0; +static uint32_t airTime = 500; //ms +static bool noTimer = true; +static uint32_t startTime = 0; #ifndef NOBLINK #include "CubeCell_NeoPixel.h" @@ -26,10 +32,11 @@ CubeCell_NeoPixel LED(1, RGB, NEO_GRB + NEO_KHZ800); #include "cubecell_SSD1306Wire.h" SSD1306Wire display(0x3c, 500000, I2C_NUM_0,GEOMETRY_128_64,GPIO10 ); #endif -char str[64]; +char str[32]; #endif void setup() { + TimerInit( &CheckRadio, onCheckRadio ); #ifndef NO_OLED pinMode(Vext,OUTPUT); digitalWrite(Vext,LOW); @@ -55,15 +62,16 @@ void setup() { Serial.begin(115200); MSG("\nSetting up Radio:\n"); #endif - RadioEvents.TxDone = TxDone; - RadioEvents.TxTimeout = TxTimeout; - RadioEvents.RxDone = RxDone; + RadioEvents.TxDone = onTxDone; + RadioEvents.TxTimeout = onTxTimeout; + RadioEvents.RxDone = onRxDone; Radio.Init( &RadioEvents ); Radio.Sleep(); memcpy(ChanSet.name, MESHTASTIC_NAME, 12); ChanSet.channel_num = hash( MESHTASTIC_NAME ) % regions[REGION].numChannels; // see config.h ChanSet.tx_power = (regions[REGION].powerLimit == 0) ? TX_MAX_POWER : MIN(regions[REGION].powerLimit, TX_MAX_POWER) ; //ChanSet.psk = MESHTASTIC_PSK; + ChanSet.psk = PSK_NOENCRYPTION; /* FYI: "bandwidth": [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] @@ -106,6 +114,8 @@ void setup() { ChanSet.spread_factor = 7; } } + airTime = floor(symbTime[MESHTASTIC_SPEED] * (36.5 + 20*8 + 16) + 0.5); // simplified AirTime for the smallest MPacket (length 20 bytes) + //real AirTime is much longer, but this will give a good compromise regarding battery savings vs. reaction time ConfigureRadio( ChanSet ); #ifndef SILENT MSG("..done! Switch to Receive Mode.\n"); @@ -117,14 +127,20 @@ void setup() { Radio.Rx(0); // initial mode = receive } -void loop( ) -{ - lowPowerHandler( ); - delay(500); - Radio.IrqProcess( ); +void onCheckRadio(void){ + noTimer=false; } -void TxDone( void ) +void loop( ) +{ + noTimer = true; + TimerSetValue( &CheckRadio, airTime ); // ms + TimerStart( &CheckRadio ); // onCheckRadio() will set noTimer to false + while (noTimer) lowPowerHandler( ); + Radio.IrqProcess(); // handle events from LoRa +} + +void onTxDone( void ) { Radio.Sleep( ); #ifndef NOBLINK @@ -132,7 +148,7 @@ void TxDone( void ) LED.show( ); #endif #ifndef SILENT - MSG(".done! Switch to Receive Mode.\n"); +MSG(".done (%ims)! Switch to Receive Mode.\n", millis() - startTime ); #endif #ifndef NO_OLED sprintf(str,"..done. RX Mode.."); @@ -142,7 +158,7 @@ void TxDone( void ) Radio.Rx( 0 ); // switch to receive mode } -void TxTimeout( void ) +void onTxTimeout( void ) { Radio.Sleep( ); #ifndef NOBLINK @@ -160,15 +176,20 @@ void TxTimeout( void ) Radio.Rx( 0 ); // switch to receive mode } -void RxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) +void onRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) { if ( !(Radio.GetStatus() == RF_RX_RUNNING) ) Radio.Sleep( ); if ( size > MAX_PAYLOAD_LENGTH ) size = MAX_PAYLOAD_LENGTH; if ( !(size > sizeof(PacketHeader)) ) { #ifndef SILENT MSG("\nReceived packet! (Size %i bytes, RSSI %i, SNR %i)\n", size, rssi, snr); - MSG("Packet to small (No MeshPacket), discard. Switch to Receive Mode.\n"); + MSG("Packet to small (No MeshPacket).\n"); #endif + #ifndef NOBLINK + LED.setPixelColor( 0, RGB_RED ); // send mode + LED.show(); + #endif + Radio.Send( payload, size ); Radio.Rx( 0 ); return; } @@ -185,11 +206,11 @@ void RxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) memcpy(p->encrypted.bytes, payload + sizeof(PacketHeader), p->encrypted.size); #ifndef SILENT MSG("\nReceived packet! (Size %i bytes, RSSI %i, SNR %i)\n", size, rssi, snr); - MSG("TO: %.2X ", thePacket.to); - MSG(" FROM: %.2X ", thePacket.from); - MSG(" Packet ID: %.2X ", thePacket.id); - MSG(" Flags: WANT_ACK="); MSG((thePacket.want_ack) ? "YES " : "NO "); - MSG(" HOP_LIMIT=%i\n", thePacket.hop_limit); + MSG("TO: %.2X ", p->to); + MSG(" FROM: %.2X ", p->from); + MSG(" Packet ID: %.2X ", p->id); + MSG(" Flags: WANT_ACK="); MSG((p->want_ack) ? "YES " : "NO "); + MSG(" HOP_LIMIT=%i\n", p->hop_limit); MSG("Payload:"); for ( int i=0; i < p->encrypted.size; i++ ) MSG(" %.2X", p->encrypted.bytes[i]); MSG("\n"); #endif @@ -199,32 +220,33 @@ void RxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) display.setFont(ArialMT_Plain_10); sprintf(str,"Size: %i RSSI %i SNR %i", size, rssi, snr); display.drawString(0,0,str); - sprintf(str,"%X", thePacket.to); + sprintf(str,"%X", p->to); display.drawString(0,11,"TO:"); display.drawString(40,11,str); - sprintf(str,"%X", thePacket.from); + sprintf(str,"%X", p->from); display.drawString(0,22,"FROM:"); display.drawString(40,22,str); - sprintf(str,"%X", thePacket.id); + sprintf(str,"%X", p->id); display.drawString(0,32,"ID:"); display.drawString(40,32,str); display.display(); #endif if ( !(lastreceivedID == thePacket.id) ){ // will repeat package - #ifndef SILENT - MSG("Sending packet.. (Size: %i)..", size); - #endif + lastreceivedID = thePacket.id; #ifndef NO_OLED sprintf(str,"Sending.."); display.drawString(0,53,str); display.display(); #endif - lastreceivedID = thePacket.id; #ifndef NOBLINK LED.setPixelColor( 0, RGB_RED ); // send mode LED.show(); #endif + #ifndef SILENT + MSG("Sending packet.. (Size: %i)..", size); + startTime = millis(); + #endif Radio.Send( payload, size ); } else{ @@ -263,6 +285,10 @@ void ConfigureRadio( ChannelSettings ChanSet ) MSG("Setting bandwidth to index %i ..\n",ChanSet.bandwidth); MSG("Setting CodeRate to index %i .. \n", ChanSet.coding_rate); MSG("Setting SpreadingFactor to %i ..\n",ChanSet.spread_factor); + MSG("(est. SymbolTime for setting is "); + Serial.print(symbTime[MESHTASTIC_SPEED]); MSG("ms)\n"); + MSG("(LowPowerTime = (36.5 + 8 x 20 + 16) x SymbolTime (Preamble + 20 byte minimal packet length + 16 bit CRC) - very simplified calculation!)\n"); + MSG("LowPowerTime: "); Serial.print(airTime); MSG("ms ..\n"); #endif Radio.SetChannel( freq ); Radio.SetTxConfig( MODEM_LORA, ChanSet.tx_power ,0 , ChanSet.bandwidth, ChanSet.spread_factor, ChanSet.coding_rate,