#ifndef HALH
#define HALH

#define MAXBATT                 4200    // The default Lipo is 4200mv when the battery is fully charged.
#define LIGHT_SLEEP_VOLTAGE     3750    // Point where start light sleep
#define MINBATT                 3200    // The default Lipo is 3200mv when the battery is empty...this WILL be low on the 3.3v rail specs!!!


#ifndef ENVIRONMENT
#error "Must define ENVIRONMENT..."
#endif

#define HELTECv2   1
#define LOLIN32    2
#define TTGO_T18   3
#define HELTECv21  4



#if ENVIRONMENT == HELTECv2 //HELTEC WIFI LORA V2

#define TRIGGER   27
#define ECHO      14

#define VBATT     ADC2_CHANNEL_4
#define VEXT      21

#endif

#if ENVIRONMENT == LOLIN32 //LOLIN32

#define SDA_OLED  15
#define SCL_OLED   4
#define RST_OLED  17

#define TRIGGER   13
#define ECHO      14

#define VBATT     ADC2_CHANNEL_1
#define VEXT      21
#endif

#if ENVIRONMENT == HELTECv21 //

#define TRIGGER   27
#define ECHO      14

#define VBATT     ADC2_CHANNEL_1
#define VEXT      21

#endif

#if ENVIRONMENT == TTGO_T18 //LOLIN32

#define SDA_OLED  15
#define SCL_OLED   4
#define RST_OLED  17

#define TRIGGER   13
#define ECHO      14

#define VBATT     ADC2_CHANNEL_1
#define VEXT      21
#endif

#endif //HALH