2222#include < ChallengerLTE.h>
2323
2424Challenger2040LTEClass::Challenger2040LTEClass () {
25- pinMode (PIN_SARA_ON, OUTPUT);
26- digitalWrite (PIN_SARA_ON, LOW); // Output register must always be low
27- pinMode (PIN_SARA_ON, INPUT_PULLUP);
25+ pinMode (PIN_SARA_ON, OUTPUT);
26+ digitalWrite (PIN_SARA_ON, LOW); // Output register must always be low
27+ pinMode (PIN_SARA_ON, INPUT_PULLUP);
2828
29- pinMode (PIN_SARA_RST, INPUT_PULLUP); // Keep as input for now
29+ pinMode (PIN_SARA_RST, INPUT_PULLUP); // Keep as input for now
3030
31- pinMode (PIN_SARA_PWR, OUTPUT);
32- digitalWrite (PIN_SARA_PWR, LOW); // No power to SARA yet
33- serialPortConfigured = false ;
31+ pinMode (PIN_SARA_PWR, OUTPUT);
32+ digitalWrite (PIN_SARA_PWR, LOW); // No power to SARA yet
33+ serialPortConfigured = false ;
3434}
3535
3636// Do a HW reset by applying a low pulse to the reset line for 1mSec
3737bool Challenger2040LTEClass::doPowerOn () {
38- bool ret;
39- digitalWrite (PIN_SARA_PWR, HIGH); // Make sure LDO is on
40- delay (100 ); // let the power stabilize
41- pinMode (PIN_SARA_ON, OUTPUT); // Pull power on control low
42- delay (150 ); // For 150mS
43- pinMode (PIN_SARA_ON, INPUT_PULLUP); // before releasing it again.
44- delay (1000 ); // Now wait for 1 second
45- SARA_SERIAL_PORT.begin (DEFAULT_SARA_BAUDRATE);
46- serialPortConfigured = true ;
47- ret = isAlive (); // Makie sure the modem is
48- // up and running
49-
50- delay (250 ); // Allow for any extra characters
51- // before flushing the input buffer
52- while (SARA_SERIAL_PORT.available ()) SARA_SERIAL_PORT.read ();
53-
54- return ret;
38+ bool ret;
39+ digitalWrite (PIN_SARA_PWR, HIGH); // Make sure LDO is on
40+ delay (100 ); // let the power stabilize
41+ pinMode (PIN_SARA_ON, OUTPUT); // Pull power on control low
42+ delay (150 ); // For 150mS
43+ pinMode (PIN_SARA_ON, INPUT_PULLUP); // before releasing it again.
44+ delay (1000 ); // Now wait for 1 second
45+ SARA_SERIAL_PORT.begin (DEFAULT_SARA_BAUDRATE);
46+ serialPortConfigured = true ;
47+ ret = isAlive (); // Makie sure the modem is
48+ // up and running
49+
50+ delay (250 ); // Allow for any extra characters
51+ // before flushing the input buffer
52+ while (SARA_SERIAL_PORT.available ()) {
53+ SARA_SERIAL_PORT.read ();
54+ }
55+
56+ return ret;
5557}
5658
5759// Checks to see if the modem responds to the "AT" poll command.
5860bool Challenger2040LTEClass::isAlive (uint32_t timeout) {
59- SARA_SERIAL_PORT.setTimeout (100 );
60- SARA_SERIAL_PORT.println (F (" AT"
61- String rdy = SARA_SERIAL_PORT.readStringUntil (' \n '
62- while (!rdy.startsWith (F (" OK"
61+ SARA_SERIAL_PORT.setTimeout (100 );
6362 SARA_SERIAL_PORT.println (F (" AT"
64- rdy = SARA_SERIAL_PORT.readStringUntil (' \n '
65- // Serial.println(rdy);
66- }
67- SARA_SERIAL_PORT.setTimeout (1000 ); // Restore serial timeout
68- if (timeout)
69- return true ;
70- return false ;
63+ String rdy = SARA_SERIAL_PORT.readStringUntil (' \n '
64+ while (!rdy.startsWith (F (" OK"
65+ SARA_SERIAL_PORT.println (F (" AT"
66+ rdy = SARA_SERIAL_PORT.readStringUntil (' \n '
67+ // Serial.println(rdy);
68+ }
69+ SARA_SERIAL_PORT.setTimeout (1000 ); // Restore serial timeout
70+ if (timeout) {
71+ return true ;
72+ }
73+ return false ;
7174}
7275
7376// Return the current MNO profile
7477// Returns -1 if the serial port is not yet setup or the number of the current
7578// MNO profile setting from the modem.
7679int Challenger2040LTEClass::getMNOProfile () {
77- if (!serialPortConfigured)
78- return -1 ;
79- SARA_SERIAL_PORT.println (F (" AT+UMNOPROF?"
80- String resp = getResponse ();
81- return resp.substring (resp.indexOf (" +UMNOPROF: " 11 ).toInt ();
80+ if (!serialPortConfigured) {
81+ return -1 ;
82+ }
83+ SARA_SERIAL_PORT.println (F (" AT+UMNOPROF?"
84+ String resp = getResponse ();
85+ return resp.substring (resp.indexOf (" +UMNOPROF: " 11 ).toInt ();
8286}
8387
8488// Set a new MNO profile
8589// Returns false if the serial port is not yet setup
8690bool Challenger2040LTEClass::setMNOProfile (int profile) {
87- if (!serialPortConfigured)
88- return false ;
89- String cmd = " AT+UMNOPROF=" String (profile) + " ,1"
90- SARA_SERIAL_PORT.println (cmd);
91-
92- if (!getResponse ().endsWith (" OK"
93- return false ;
94- }
95- return true ;
91+ if (!serialPortConfigured) {
92+ return false ;
93+ }
94+ String cmd = " AT+UMNOPROF=" String (profile) + " ,1"
95+ SARA_SERIAL_PORT.println (cmd);
96+
97+ if (!getResponse ().endsWith (" OK"
98+ return false ;
99+ }
100+ return true ;
96101}
97102
98103// Disable power save features
99104bool Challenger2040LTEClass::enablePS (bool enable) {
100- if (!serialPortConfigured)
101- return false ;
102- if (enable)
103- SARA_SERIAL_PORT.println (F (" AT+CPSMS=1"
104- else
105- SARA_SERIAL_PORT.println (F (" AT+CPSMS=0"
106-
107- if (!getResponse ().endsWith (" OK"
108- return false ;
109- }
110- return true ;
105+ if (!serialPortConfigured) {
106+ return false ;
107+ }
108+ if (enable) {
109+ SARA_SERIAL_PORT.println (F (" AT+CPSMS=1"
110+ } else {
111+ SARA_SERIAL_PORT.println (F (" AT+CPSMS=0"
112+ }
113+
114+ if (!getResponse ().endsWith (" OK"
115+ return false ;
116+ }
117+ return true ;
111118}
112119
113120// Get a response from SARA
@@ -116,18 +123,19 @@ bool Challenger2040LTEClass::enablePS(bool enable) {
116123// from control characters and appended with a tab character as a separator.
117124//
118125String Challenger2040LTEClass::getResponse (int timeout) {
119- SARA_SERIAL_PORT.setTimeout (2000 ); // allow for really slow responses
126+ SARA_SERIAL_PORT.setTimeout (2000 ); // allow for really slow responses
120127
121- String resp = SARA_SERIAL_PORT.readStringUntil (' \n '
122- resp.trim ();
123- String acc = resp;
124- while (resp.indexOf (" OK" 1 && resp.indexOf (" ERROR" 1 && --timeout) {
125- resp = SARA_SERIAL_PORT.readStringUntil (' \n '
128+ String resp = SARA_SERIAL_PORT.readStringUntil (' \n '
126129 resp.trim ();
127- if (resp.length ())
128- acc += " \t "
129- }
130- return acc;
130+ String acc = resp;
131+ while (resp.indexOf (" OK" 1 && resp.indexOf (" ERROR" 1 && --timeout) {
132+ resp = SARA_SERIAL_PORT.readStringUntil (' \n '
133+ resp.trim ();
134+ if (resp.length ()) {
135+ acc += " \t "
136+ }
137+ }
138+ return acc;
131139}
132140
133141Challenger2040LTEClass Challenger2040LTE;
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