commit fec22ac019e7ca7ef97393c35bea10547eaaee0b
parent 3ac5ed0e3a543979aabe3b76cfa820ea7b4aed2f
Author: Friedel Schön <[email protected]>
Date: Mon, 30 May 2022 19:19:38 +0200
add 5g-code
Diffstat:
1 file changed, 126 insertions(+), 0 deletions(-)
diff --git a/5g-board/sara_test.ino b/5g-board/sara_test.ino
@@ -0,0 +1,126 @@
+#define usbSerial SerialUSB
+#define modemSerial Serial1
+#define powerPin SARA_ENABLE
+#define enablePin SARA_TX_ENABLE
+#define voltagePin SARA_R4XX_TOGGLE
+#define baud 115200
+
+#define COMMAND_OK 0
+#define COMMAND_ERROR 1
+
+#define LINE_BUFFER 256
+
+#define SIM_PIN "0000"
+#define APN_DOMAIN "live.vodafone.com"
+
+
+size_t modemReadline(char* dest) {
+ char buf;
+ size_t index = 0;
+
+ for (;;) {
+ while (!modemSerial.available());
+ buf = modemSerial.read();
+ if (buf == '\r')
+ continue;
+ if (buf == '\n')
+ break;
+ dest[index++] = buf;
+ }
+ dest[index] = '\0';
+ return index;
+}
+
+// sendCommand returns COMMAND_OK or COMMAND_ERROR
+int sendCommand(const char* request, char* response) {
+ char line[LINE_BUFFER];
+ size_t lineLen;
+
+ if (response)
+ response[0] = '\0';
+
+ modemSerial.write(request);
+ modemSerial.write("\r\n");
+ modemSerial.flush();
+
+ for (;;) {
+ lineLen = modemReadline(line);
+ if (String(line) == "OK") {
+ return COMMAND_OK;
+ } else if (String(line) == "ERROR") {
+ return COMMAND_ERROR;
+ } else if (response && line[0] != '\0') {
+ if (response[0] != '\0') // check if not empty string
+ strcat(response, "\n");
+ strcat(response, line);
+ }
+ }
+}
+
+int sendCommand(const char* request) {
+ return sendCommand(request, NULL);
+}
+
+
+void setup() {
+ pinMode(powerPin, OUTPUT); // Put voltage on the nb-iot module
+ digitalWrite(powerPin, HIGH);
+
+ pinMode(voltagePin, OUTPUT); // Switch module voltage
+ digitalWrite(voltagePin, LOW);
+
+ pinMode(enablePin, OUTPUT); // Set state to active
+ digitalWrite(enablePin, HIGH);
+
+ usbSerial.begin(baud);
+ while (!usbSerial);
+
+ modemSerial.begin(baud);
+ while (!modemSerial);
+
+
+ usbSerial.print("[INFO] Waiting for module to response");
+ for (;;) {
+ usbSerial.print('.');
+ modemSerial.write("AT\r\n");
+ delay(500);
+ if (modemSerial.available())
+ break;
+ }
+ while (modemSerial.available()) // clear cache
+ modemSerial.read();
+ usbSerial.println();
+
+ sendCommand("ATE0"); // disable command-echo
+
+ if (sendCommand("AT+CPIN=\"" SIM_PIN "\"") == COMMAND_ERROR) {
+ usbSerial.println("[ERROR] SIM can't be unlocked, wrong PIN");
+ return;
+ }
+
+ sendCommand("AT+CPSMS=0"); // Disable Power Saving Mode
+ sendCommand("AT+CEDRXS=0"); // Disable eDRX
+
+ sendCommand("AT+CFUN=15"); // Reset the module
+ sendCommand("AT+UMNOPROF=1"); // Set MNO profile (1=automatic,100=standard europe)
+ sendCommand("AT+URAT=7"); // Set URAT to LTE-M
+ sendCommand("AT+CEREG=3"); // Enable URCs
+ sendCommand("AT+CGDCONT=1,\"IP\",\"" APN_DOMAIN "\""); // Set the APN
+ sendCommand("AT+COPS=0,2"); // Autoselect the operator
+
+ usbSerial.println("Waiting...");
+
+ char response[100];
+ while (sendCommand("AT+CSQ", response) == COMMAND_OK && strcmp(response, "+CSQ: 99,99")); // Check Siganl strenght, repeat till you have a valid CSQ (99,99 means no signal)
+ while (sendCommand("AT+CGATT?", response) == COMMAND_OK && !strcmp(response, "+CGATT: 1")); // Check Siganl strenght, repeat till you have a valid CSQ (99,99 means no signal)
+
+ usbSerial.println("Connected!");
+}
+
+void loop() {
+ while (usbSerial.available())
+ modemSerial.write(usbSerial.read());
+
+ while (modemSerial.available())
+ usbSerial.write(modemSerial.read());
+}
