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Use async connection with sara r4 - fewer freezes

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Sara Damiano
2019-08-28 12:41:51 -04:00
parent 3bf857e758
commit 958c303840
1 changed files with 33 additions and 22 deletions
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55
src/TinyGsmClientSaraR4.h
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@@ -54,9 +54,7 @@ class GsmClient : public Client
public:
GsmClient() {}
GsmClient(TinyGsmSaraR4& modem, uint8_t mux = 0) {
init(&modem, mux);
}
GsmClient(TinyGsmSaraR4& modem, uint8_t mux = 0) { init(&modem, mux); }
virtual ~GsmClient(){}
@@ -170,9 +168,7 @@ public:
* Basic functions
*/
bool begin(const char* pin = NULL) {
return init(pin);
}
bool begin(const char* pin = NULL) { return init(pin); }
bool init(const char* pin = NULL) {
DBG(GF("### TinyGSM Version:"), TINYGSM_VERSION);
@@ -181,7 +177,7 @@ public:
return false;
}
sendAT(GF("E0")); // Echo Off
sendAT(GF("E0")); // Echo Off
if (waitResponse() != 1) {
return false;
}
@@ -226,7 +222,8 @@ public:
String name = res1 + String(' ') + res2;
DBG("### Modem:", name);
if (!name.startsWith("u-blox SARA-R4") && !name.startsWith("u-blox SARA-N4")) {
if (!name.startsWith("u-blox SARA-R4") &&
!name.startsWith("u-blox SARA-N4")) {
DBG("### WARNING: You are using the wrong TinyGSM modem!");
}
@@ -310,13 +307,14 @@ TINY_GSM_MODEM_GET_SIMCCID_CCID()
}
SimStatus getSimStatus(unsigned long timeout_ms = 10000L) {
for (unsigned long start = millis(); millis() - start < timeout_ms; ) {
for (unsigned long start = millis(); millis() - start < timeout_ms;) {
sendAT(GF("+CPIN?"));
if (waitResponse(GF(GSM_NL "+CPIN:")) != 1) {
delay(1000);
continue;
}
int status = waitResponse(GF("READY"), GF("SIM PIN"), GF("SIM PUK"), GF("NOT INSERTED"));
int status = waitResponse(GF("READY"), GF("SIM PIN"), GF("SIM PUK"),
GF("NOT INSERTED"));
waitResponse();
switch (status) {
case 2:
@@ -349,10 +347,10 @@ TINY_GSM_MODEM_GET_CSQ()
TINY_GSM_MODEM_WAIT_FOR_NETWORK()
bool setURAT( uint8_t urat ) {
bool setURAT(uint8_t urat) {
// AT+URAT=<SelectedAcT>[,<PreferredAct>[,<2ndPreferredAct>]]
sendAT(GF("+COPS=2")); // Deregister from network
sendAT(GF("+COPS=2")); // Deregister from network
if (waitResponse() != 1) {
return false;
}
@@ -360,7 +358,7 @@ TINY_GSM_MODEM_WAIT_FOR_NETWORK()
if (waitResponse() != 1) {
return false;
}
sendAT(GF("+COPS=0")); // Auto-register to the network
sendAT(GF("+COPS=0")); // Auto-register to the network
if (waitResponse() != 1) {
return false;
}
@@ -542,11 +540,12 @@ TINY_GSM_MODEM_GET_GPRS_IP_CONNECTED()
protected:
bool modemConnect(const char* host, uint16_t port, uint8_t* mux,
bool ssl = false, int timeout_s = 120)
{
bool ssl = false, int timeout_s = 120) {
uint32_t timeout_ms = ((uint32_t)timeout_s)*1000;
sendAT(GF("+USOCR=6")); // create a socket
if (waitResponse(GF(GSM_NL "+USOCR:")) != 1) { // reply is +USOCR: ## of socket created
// create a socket
sendAT(GF("+USOCR=6"));
// reply is +USOCR: ## of socket created
if (waitResponse(GF(GSM_NL "+USOCR:")) != 1) {
return false;
}
*mux = stream.readStringUntil('\n').toInt();
@@ -566,9 +565,22 @@ protected:
//waitResponse();
// connect on the allocated socket
sendAT(GF("+USOCO="), *mux, ",\"", host, "\",", port);
int rsp = waitResponse(timeout_ms);
return (1 == rsp);
// Use an asynchronous open to reduce the number of terminal freeze-ups
// This is still blocking until the URC arrives
// The SARA-R410M-02B with firmware revisions prior to L0.0.00.00.05.08
// has a nasty habit of locking up when opening a socket, especially if
// the cellular service is poor.
sendAT(GF("+USOCO="), *mux, ",\"", host, "\",", port, ",1");
waitResponse(timeout_ms, GF(GSM_NL "+UUSOCO: "));
stream.readStringUntil(',').toInt(); // skip repeated mux
int connection_status = stream.readStringUntil('\n').toInt();
return (0 == connection_status);
// use synchronous open
// sendAT(GF("+USOCO="), *mux, ",\"", host, "\",", port, ",0");
// int rsp = waitResponse(timeout_ms);
// return (1 == rsp);
}
int16_t modemSend(const void* buff, size_t len, uint8_t mux) {
@@ -632,8 +644,7 @@ protected:
// NOTE: Querying a closed socket gives an error "operation not allowed"
sendAT(GF("+USOCTL="), mux, ",10");
uint8_t res = waitResponse(GF(GSM_NL "+USOCTL:"));
if (res != 1)
return false;
if (res != 1) return false;
streamSkipUntil(','); // Skip mux
streamSkipUntil(','); // Skip type