add BTA_modbusmeteo

BTA_modbusmeteo/bta_meteo_modbus.h

@@ -0,0 +1,35 @@
+/*
+ * This file is part of the bta_meteo_modbus project.
+ * Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#ifndef BTA_METEO_MODBUS_H__
+#define BTA_METEO_MODBUS_H__
+
+// data reading timeout (in seconds)
+#define METEO_TIMEOUT   5
+
+typedef  enum{
+    ANS_OK,         // all OK
+    ANS_LOSTCONN,   // lost connection
+    ANS_NOTFULL     // got not full dataset (or nothing at all)
+} params_ans;
+
+int connect2tty();
+
+params_ans check_meteo_params();
+
+#endif // BTA_METEO_MODBUS_H__