EcoApi Bee hive monitoring
description TBD
Features
- External i2c sensor (ex: as6200, si7021, shtxx, ...)
- Microphone analog with max9814 (FFT with dma)
- Microphone i2s (FFT with dma)
- Weight with load scale using hx711 (opimized for 3.3V with noise filter), calibration by led information
- CPU STM32F411CEU6
- Motion detection using mercure tilt vibration sensor
- Internal i2c sensor (ex: bmp180, bme180, bme280, ...)
- Lora using rfm95w
- Powered battery like : Li-ion, Li-po, 3xNimh, 4xNimh, LifePO4, Alkaline 3x1.5 / 2x1.5, Li-SOCL2, Li-Mn02, 18650
- Reverse battery protection
- USB charger
- Ultra low power in sleep mode (wakeup by external rtc) ~2µA
- Power in running mode TBD
- USB cdc from stm32
- Power switch for internal / external VCC (3.3V)
- Fram
- EEprom
- Flash SPI
- External nano watchdog
- Debug by led, Uart,
Hardware
Characteristics
- Cpu
- Lora
- Consumption
- Fram
- EEprom
- Flash
- Rtc
- WDG
- HX711
- Protection battery
- Backup capacitor explanation
- Battery charger
- USB cdc
- Ldo
- Buck-boost
- Power Load switch
- Wakeup parts (button, wdg, motion, rtc)
- Dip switch
- Connector (load cell, external sensors, Battery, internal sensor, Debug & SWD)
- Push button
- Debug (Uart, USB CDC, SWD)
- ....
Pcb
Front
Back
Pinout
array of pins description
pcb
describ options with 0R resistors. etc ...
JlcPcb production
- Bom and pick&place : https://support.jlcpcb.com/article/153-how-to-generate-bom-and-centroid-files-from-kicad-in-linux
- JlcPcb gerber files : https://support.jlcpcb.com/article/149-how-to-generate-gerber-and-drill-files-in-kicad
Software
To be define (flow chart) ...
Description
- Lora : ttn, webhook for beep, js decoder, frame format
- sensor template
- Sensors auto-detection
- Outside informations (temperature, pressure, humidity, wind, ...)
- Inside informations (Sound, temperature, humidity, gas, bee counter, custom sensor ...)
- System information (RSSI, VBATT,
- describe directive in platforio.ini
- FFT on analog mic or I2S mic (parameters, range etc ...)
- sleep mode
Ide & compilation
- pio
- plugins
- ....
lmic debug
in platformio.ini
(1) uncomment : -D LMIC_DEBUG_LEVEL=2 -D LMIC_ENABLE_event_logging=1 -D LMIC_X_DEBUG_LEVEL=1
(2) replace in lmic/lmic.h :
ifdef LMIC_DEBUG_PRINTF_FN
define LMIC_X_DEBUG_PRINTF(f, ...) LMIC_DEBUG_PRINTF_FN(f, ## VA_ARGS)
else
error "LMIC_DEBUG_PRINTF_FN must be defined for LMIC_X_DEBUG_LEVEL > 0."
endif
by :
#define LMIC_X_DEBUG_PRINTF(f, ...) LMIC_DEBUG_PRINTF(f, ## VA_ARGS)
how to
- Scale full or half
- Tare button
- Led information
- Motion tilt
- Debug
- usb charger leds
- Sleep on VBATT or 3.3V with slide switch
- Dip switch
- USB with android application (flutter.io or other)