Added extra "ping" for data to read() of SIM800

2018-10-02 15:09:19 -04:00
parent 8e057f32ae
commit 0e905afa6e
2 changed files with 10 additions and 0 deletions
--- a/src/TinyGsmClientSIM800.h
+++ b/src/TinyGsmClientSIM800.h
@@ -144,6 +144,13 @@ public:
        continue;
      }
      // TODO: Read directly into user buffer?
+      // Workaround: sometimes SIM800 forgets to notify about data arrival.
+      // TODO: Currently we ping the module periodically,
+      // but maybe there's a better indicator that we need to poll
+      if (millis() - prev_check > 500)  {
+        got_data = true;
+        prev_check = millis();
+      }
      at->maintain();
      if (sock_available > 0) {
        sock_available -= at->modemRead(TinyGsmMin((uint16_t)rx.free(), sock_available), mux);