deep sleep (experimental)

include/display.h

@@ -7,7 +7,8 @@
 extern uint8_t DisplayIsOn;
 
 void refreshTheDisplay(bool nextPage = false);
-void init_display(uint8_t verbose = 0);
+void init_display(bool verbose = false);
+void shutdown_display(void);
 void draw_page(time_t t, uint8_t page);
 void dp_printf(uint16_t x, uint16_t y, uint8_t font, uint8_t inv,
                const char *format, ...);

include/globals.h

@@ -51,6 +51,11 @@
 
 enum sendprio_t { prio_low, prio_normal, prio_high };
 enum timesource_t { _gps, _rtc, _lora, _unsynced };
+enum runmode_t {
+  RUNMODE_NORMAL,
+  RUNMODE_UPDATE,
+  RUNMODE_WAKEUP
+};
 
 // Struct holding devices's runtime configuration
 typedef struct {

include/i2c.h

@@ -1,5 +1,5 @@
-#ifndef _I2CSCAN_H
-#define _I2CSCAN_H
+#ifndef _I2C_H
+#define _I2C_H
 
 #include <Arduino.h>
 
@@ -11,6 +11,8 @@
 #define MCP_24AA02E64_PRIMARY_ADDRESS (0x50)
 #define QUECTEL_GPS_PRIMARY_ADDRESS (0x10)
 
+void i2c_init(void);
+void i2c_deinit(void);
 int i2c_scan(void);
 
 #endif

include/lorawan.h

@@ -21,6 +21,7 @@
 #endif
 
 extern TaskHandle_t lmicTask, lorasendTask;
+extern RTC_DATA_ATTR int RTCseqnoUp, RTCseqnoDn;
 
 // table of LORAWAN MAC commands
 typedef struct {
@@ -29,7 +30,7 @@ typedef struct {
   const uint8_t params;
 } mac_t;
 
-esp_err_t lora_stack_init();
+esp_err_t lora_stack_init(bool joined = false);
 void lora_setupForNetwork(bool preJoin);
 void lmictask(void *pvParameters);
 void gen_lora_deveui(uint8_t *pdeveui);

include/main.h

@@ -8,7 +8,7 @@
 
 #include "globals.h"
 #include "power.h"
-#include "i2cscan.h"
+#include "i2c.h"
 #include "blescan.h"
 #include "wifiscan.h"
 #include "configmanager.h"
@@ -18,6 +18,7 @@
 #include "irqhandler.h"
 #include "led.h"
 #include "spislave.h"
+
 #if (HAS_LORA)
 #include "lorawan.h"
 #endif

include/power.h

@@ -3,19 +3,24 @@
 
 #include <Arduino.h>
 #include <driver/adc.h>
+#include <driver/rtc_io.h>
 #include <esp_adc_cal.h>
-#include "i2cscan.h"
+#include "i2c.h"
 
 #define DEFAULT_VREF 1100 // tbd: use adc2_vref_to_gpio() for better estimate
 #define NO_OF_SAMPLES 64  // we do some multisampling to get better values
 
+extern RTC_DATA_ATTR runmode_t RTC_runmode;
+
 uint16_t read_voltage(void);
 void calibrate_voltage(void);
 bool batt_sufficient(void);
+void enter_deepsleep(const int wakeup_sec, const gpio_num_t wakeup_gpio);
+int exit_deepsleep(void);
 
 #ifdef HAS_PMU
 #include <axp20x.h>
-void power_event_IRQ(void);
+void AXP192_powerevent_IRQ(void);
 void AXP192_power(bool on);
 void AXP192_init(void);
 void AXP192_showstatus(void);