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This commit is contained in:
Reese Wells
2025-03-04 22:07:03 -05:00
parent db7927b4dc
commit 9a43f4a530
1 changed files with 31 additions and 25 deletions
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56
Feather9x_debug_demo/Feather9x_debug_demo.ino
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@@ -3,13 +3,17 @@
#include <string> #include <string>
/* for feather m0 */ /* for feather m0 */
#define RFM95_CS 8 //#define RFM95_CS 8
#define RFM95_RST 4 const int RFM95_CS = 8;
#define RFM95_INT 3 //#define RFM95_RST 4
const int RFM95_RST = 4;
//#define RFM95_INT 3
const int RFM95_INT = 3;
// Change to 434.0 or other frequency, must match RX's freq! // Change to 434.0 or other frequency, must match RX's freq!
#define RF95_FREQ 915.0 //#define RF95_FREQ 915.0
const float RF95_FREQ = 915.0;
// Lower bandwidth means longer distance but lower data rate // Lower bandwidth means longer distance but lower data rate
// Valid values are: // Valid values are:
// 0-7800khz: 7.8 // 0-7800khz: 7.8
@@ -22,17 +26,18 @@
// 62501-12500 125.0 DEFAULT // 62501-12500 125.0 DEFAULT
// 12501-250000 250.0 // 12501-250000 250.0
// >250000 500.0 // >250000 500.0
#define RF95_BANDWIDTH 62.5 // #define RF95_BANDWIDTH 125
const long RF95_BANDWIDTH = 125;
// Higher spread factor means longer distance // Higher spread factor means longer distance
// Valid values are 6-12 // Valid values are 6-12
#define RF95_SPREAD_FACTOR 12 // #define RF95_SPREAD_FACTOR 6
const uint8_t RF95_SPREAD_FACTOR = 7;
// Higher TX power means longer distance // Higher TX power means longer distance
// Valid values are 5-23 // Valid values are 5-23
#define RF95_TX_POWER 23 // #define RF95_TX_POWER 23
const int8_t RF95_TX_POWER = 23;
// Make sure you run setLowDatarate() when going for long distance
// Singleton instance of the radio driver // Singleton instance of the radio driver
RH_RF95 rf95(RFM95_CS, RFM95_INT); RH_RF95 rf95(RFM95_CS, RFM95_INT);
@@ -68,19 +73,19 @@ void setup() {
Serial.print("Set Freq to: "); Serial.print("Set Freq to: ");
Serial.println(RF95_FREQ); Serial.println(RF95_FREQ);
// Set the signal bandwidth // //Set the signal bandwidth
rf95.setSignalBandwidth(RF95_BANDWIDTH); // rf95.setSignalBandwidth(RF95_BANDWIDTH);
Serial.print("Set bandwidth to: "); // Serial.print("Set bandwidth to: ");
Serial.println(RF95_BANDWIDTH); // Serial.println(RF95_BANDWIDTH);
// Set the signal bandwidth // // Set the spreading factor
rf95.setSpreadingFactor(RF95_SPREAD_FACTOR); // rf95.setSpreadingFactor(RF95_SPREAD_FACTOR);
Serial.print("Set spreading factor to: "); // Serial.print("Set spreading factor to: ");
Serial.println(RF95_SPREAD_FACTOR); // Serial.println(RF95_SPREAD_FACTOR);
// Set low transmission rate // Set low transmission rate
rf95.setLowDatarate(); // rf95.setLowDatarate();
Serial.println("Set low data rate"); // Serial.println("Set low data rate");
// The default transmitter power is 13dBm, using PA_BOOST. // The default transmitter power is 13dBm, using PA_BOOST.
// If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then // If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then
@@ -108,7 +113,7 @@ void loop() {
Serial.println("Welcome " + chat_name); Serial.println("Welcome " + chat_name);
digitalWrite(LED_BUILTIN, HIGH); digitalWrite(LED_BUILTIN, HIGH);
rf95.send((uint8_t *)reinterpret_cast<const uint8_t *>(&intro_message), RH_RF95_MAX_MESSAGE_LEN); rf95.send((uint8_t *)(intro_message.c_str()), RH_RF95_MAX_MESSAGE_LEN);
rf95.waitPacketSent(); rf95.waitPacketSent();
digitalWrite(LED_BUILTIN, LOW); digitalWrite(LED_BUILTIN, LOW);
} }
@@ -120,12 +125,13 @@ void loop() {
String send_message = chat_name + ": " + chat_message; String send_message = chat_name + ": " + chat_message;
Serial.println(send_message); Serial.println(send_message);
rf95.send((uint8_t *)reinterpret_cast<const uint8_t *>(&send_message), RH_RF95_MAX_MESSAGE_LEN); rf95.send((uint8_t *)(send_message.c_str()), RH_RF95_MAX_MESSAGE_LEN);
rf95.waitPacketSent(); rf95.waitPacketSent();
digitalWrite(LED_BUILTIN, LOW); digitalWrite(LED_BUILTIN, LOW);
} }
} }
// Receiver code // Receiver code
delay(100);
if (rf95.available()) { if (rf95.available()) {
digitalWrite(LED_BUILTIN, HIGH); digitalWrite(LED_BUILTIN, HIGH);
// Should be a message for us now // Should be a message for us now
@@ -133,10 +139,10 @@ void loop() {
uint8_t len = sizeof(buf); uint8_t len = sizeof(buf);
if (rf95.recv(buf, &len)) { if (rf95.recv(buf, &len)) {
// RH_RF95::printBuffer("Received: ", buf, len); RH_RF95::printBuffer("Received: ", buf, len);
Serial.println((char *)buf); Serial.println((char *)buf);
// Serial.print("RSSI: "); Serial.print("RSSI: ");
// Serial.println(rf95.lastRssi(), DEC); Serial.println(rf95.lastRssi(), DEC);
digitalWrite(LED_BUILTIN, LOW); digitalWrite(LED_BUILTIN, LOW);
} }
} }