This example demonstrates usage of automotive grade external I2C RTC in ESP-IDF environment. To show a usecase in a real world application a "MailBox Notifier" demo build up. The Application together with the PCB board is able to track a mailbox OPEN or CLOSED state and send out to a receiver uController. The communication via ESP-NOW protocol. Some of the parameters has a SAVE/LOAD capability to SPIFF file system. Day Light Save Functionality is implemented, to be future proof as a parameter can be stored in the future.
This example should be able to run on MailBox Notifier - ESP32 based custom PCB board | PINS are configurable. RTC RV-8263-C7 connected to SDA - GPIO 21 (configurable) and SCL to GPIO 22 (configurable) ESP32 set up to 16M with 4M application and 1M SPIFFS --> reconfigurable from 'partitions.csv' file and the 'sdkconfig'
The ESP-IDF version used for the project : ESP-IDF v5.1.2-292-g4fe15460ab pls install this branch of the ESP-IDF to have a proper prerequisites for this project.
idf.py menuconfigPlease use the 'RTC_MS/I2C Config' menu to set SCL, SDA GPIO pins, I2C port and the frequency Please use the 'RTC_MS/RV-8263-C7 RTC Driver' menu to setup basic parameters of the RTC timer Please use the 'RTC_MS/HW Dependent' menu to setup the HW versions|setup your PIN layout
Latest HW version is v0.2
main\RTC_MS_main.cpp Please read the RV-8263-C7 Application Notes for more details.
idf.py -p PORT flash monitor(Replace PORT with the name of the serial port.)
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
SE+epoch set the UTC epoch of the RTC module. For ex.: epochconverter can be used. Check the time zone as well.
example command: SE1672944185
GE read back the UTC epoch time.
example command: GE
example output :
GET UTC EPOCH : 1678402333
ST+TimeZone set timezone and adjust the time as well.
example : ST1
GT give back the Time Zone setting.
example command : GT
example output :
GET Time Zone : 1
SL+epoch set the local epoch - no Time Zone correction.
example : SL1672944185
GL give back the local epoch.
example command: GL
example output :
GET LOCAL EPOCH : 1678405837
GN get the current local Date and Time and the state of the Wake Up Timer
example command: GN
example output :
Time: 23:50:37
Date: 2023-03-09
Wake Up by Timer : 0
GC get the remaining counter value with the time unit
example command: GC
example output :
1 Minute
WS scanning the Wifi AP
example command : WS
example output :
I (270591) RT_MS: [ESP_446B71][rssi=-27][MAC=30:AE:A4:44:6B:71]
I (270591) RT_MS: [][rssi=-73][MAC=38:31:BF:F4:BB:58]
I (270591) RT_MS: [UPC1819346][rssi=-74][MAC=34:2C:C4:AB:FF:F0]
I (270601) RT_MS: [UPCD198CFD][rssi=-92][MAC=90:5C:44:9B:51:DE]
I (270601) RT_MS: sta scan done
QT quit from application and save configuration to SPIFF
example command : QT
example output : ets Jun 8 2016 00:2▒▒ets Jun 8 2016 00:22:57
GJ Save Configuration to SPIFF
example command : GJ
example output :
FM Get Free Heap size
example command : GM
example output : 216172 bytes
LSI Set LED Light to ON
example command : LSI
example output :
LSO Set LED Light to OFF
example command : LSO
example output :
GV Get ADC Voltage
example command : GV
example output :
Battery Read 2460
Battery Read 3765 [mV]
CI Check Inputs
example command : CI
example output : pins: 10
LS Day Light Save Check
example command : LS
Example output :
in case of the DLS day on october last Sunday and the time is not 3 AM.
l->tm_mday, l->tm_mon, l->tm_wday29 10 0 DLS : 0 stored DLS : 1 No action until time ...
in case of the time is over the 3AM
Time: 03:02:36 Date: 2023-10-29 Wake Up by Timer : 0 l->tm_mday, l->tm_mon, l->tm_wday29 10 0 DLS : 0 stored DLS : 1 Time: 02:02:46 Date: 2023-10-29
in case of no DLS
l->tm_mday, l->tm_mon, l->tm_wday16 11 4 DLS : 0 stored DLS : 0
RR Reset RTC
example command : RR
Example output :
pins: 01
SPIFF Init done
ADC Channel 35
Battery Read 2622
Battery Read 4008 [mV]
app_main starting
Wake Up by Timer : 0