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-rw-r--r--shared/consts.h11
-rw-r--r--shared/protocol.h1
2 files changed, 12 insertions, 0 deletions
diff --git a/shared/consts.h b/shared/consts.h
index 9c2358f..b6be4a4 100644
--- a/shared/consts.h
+++ b/shared/consts.h
@@ -52,3 +52,14 @@
#define W2_BATTERY_PIN 6
/** side-facing distance sensor pinout */
#define W2_SIDE_SENSOR_PIN 7
+
+/** battery voltage measurement sample count */
+#define W2_BATTERY_SAMPLES 10
+/** battery full voltage (millivolts) */
+#define W2_BATTERY_FULL 4500
+/** battery empty voltage (millivolts) */
+#define W2_BATTERY_EMPTY 3300
+/** battery measurement interval (milliseconds) */
+#define W2_BATTERY_MEAS_FREQ 10e3
+/** battery low level percentage (target charging station) */
+#define W2_BATTERY_PERCENTAGE_LOW 30
diff --git a/shared/protocol.h b/shared/protocol.h
index c13e56c..83d9111 100644
--- a/shared/protocol.h
+++ b/shared/protocol.h
@@ -155,6 +155,7 @@ typedef struct {
uint32_t uptime_s;
uint8_t mode;
uint16_t battery_mv;
+ uint8_t battery_percent;
} w2_s_cmd_info_tx;
typedef struct {