Edge Collective
Flood Sensing in New Orleans, Louisiana (USA)
Designing a flood alert and mapping system.
Prototyping
Gateway options
Notes
Itsy Power Options
Ultrasonic PVC Pipe Floater Prototype
Posting to FarmOS using CircuitPython
Using the demo repo here, which provides code for a remote Itsy M4 LoRa node, and an Itsy M4 + Airlift (Wifi) + Lora gateway:
Arduino Setup for Ultrasonic Sensor Node
Setting up the ultrasonic sensor (HC-SR04) ...
Noticed that the Itsy M4 isn't working with the Adafruit Timer chip -- perhaps the pins boot up in a 'high' state, so that the DONE pin always starts high, and keeps the timer off?
So going to set up everything in Arduino for now ...
Wiring identical to ultrasonic setup from before ...
Adafruit wiring setup for ultrasonic
change for itsy:
pin 5 (trigger) --> pin 10 pin 6 (echo) --> pin 11
Arduino code example for ultrasonic
Note -- there's also a 3V-compatible version of hte HC-SR04, called the RCWL-1601
Using this Arduino code for ultrasonic
Update: SAMD51 (processor on Itsy M4) doesn't seem to be compatible with the Radiohead library currently. Error when compiling:
Arduino: 1.8.12 (Linux), TD: 1.51, Board: "Adafruit ItsyBitsy M4 (SAMD51), Enabled, 120 MHz (standard), Small (-Os) (standard), 50 MHz (standard), Arduino, Off"
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:225:36: note: suggested alternative: 'GCLK_CLKCTRL_IDs'
REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TCC2_TC3)) ;
^~~~~~~~~~~~~~~~~~
GCLK_CLKCTRL_IDs
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:225:57: error: 'GCLK_CLKCTRL_GEN_GCLK0' was not declared in this scope
REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TCC2_TC3)) ;
^~~~~~~~~~~~~~~~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:225:57: note: suggested alternative: 'GCLK_PCHCTRL_GEN_GCLK0'
REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TCC2_TC3)) ;
^~~~~~~~~~~~~~~~~~~~~~
GCLK_PCHCTRL_GEN_GCLK0
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:225:82: error: 'GCLK_CLKCTRL_ID' was not declared in this scope
REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TCC2_TC3)) ;
^~~~~~~~~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:225:82: note: suggested alternative: 'GCLK_CLKCTRL_IDs'
REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TCC2_TC3)) ;
^~~~~~~~~~~~~~~
GCLK_CLKCTRL_IDs
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:226:19: error: 'struct Gclk' has no member named 'STATUS'
while ( GCLK->STATUS.bit.SYNCBUSY == 1 ); // wait for sync
^~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:232:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:235:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:236:22: error: 'TC_CTRLA_WAVEGEN_MFRQ' was not declared in this scope
TC->CTRLA.reg |= TC_CTRLA_WAVEGEN_MFRQ; // Set TC as Match Frequency
^~~~~~~~~~~~~~~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:236:22: note: suggested alternative: 'TC_WAVE_WAVEGEN_MFRQ'
TC->CTRLA.reg |= TC_CTRLA_WAVEGEN_MFRQ; // Set TC as Match Frequency
^~~~~~~~~~~~~~~~~~~~~
TC_WAVE_WAVEGEN_MFRQ
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:237:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:243:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:246:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/Arduino/libraries/RadioHead/RH_ASK.cpp:258:27: error: 'volatile struct TC_STATUS_Type::<unnamed>' has no member named 'SYNCBUSY'
while (TC->STATUS.bit.SYNCBUSY == 1); // wait for sync
^~~~~~~~
/home/dwblair/.arduino15/packages/arduino/tools/arm-none-eabi-gcc/7-2017q4/bin/arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -c -g -Os -w -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -MMD "-D__SKETCH_NAME__=\"\"\"itsym4_lora_ultrasonic.ino\"\"\"" -DF_CPU=120000000L -DARDUINO=10812 -DARDUINO_ITSYBITSY_M4 -DARDUINO_ARCH_SAMD -D__SAMD51G19A__ -DADAFRUIT_ITSYBITSY_M4_EXPRESS -D__SAMD51__ -DUSB_VID=0x239A -DUSB_PID=0x802B -DUSBCON -DUSB_CONFIG_POWER=100 "-DUSB_MANUFACTURER=\"Adafruit LLC\"" "-DUSB_PRODUCT=\"Adafruit ItsyBitsy M4\"" -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB/Adafruit_TinyUSB_ArduinoCore -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB/Adafruit_TinyUSB_ArduinoCore/tinyusb/src -D__FPU_PRESENT -DARM_MATH_CM4 -DCRYSTALLESS -mfloat-abi=hard -mfpu=fpv4-sp-d16 -DENABLE_CACHE -Os -DVARIANT_QSPI_BAUD_DEFAULT=50000000 -D__SAMD51G19A__ -DADAFRUIT_ITSYBITSY_M4_EXPRESS -D__SAMD51__ -DUSB_VID=0x239A -DUSB_PID=0x802B -DUSBCON -DUSB_CONFIG_POWER=100 "-DUSB_MANUFACTURER=\"Adafruit LLC\"" "-DUSB_PRODUCT=\"Adafruit ItsyBitsy M4\"" -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB/Adafruit_TinyUSB_ArduinoCore -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino/TinyUSB/Adafruit_TinyUSB_ArduinoCore/tinyusb/src -D__FPU_PRESENT -DARM_MATH_CM4 -DCRYSTALLESS -mfloat-abi=hard -mfpu=fpv4-sp-d16 -I/home/dwblair/.arduino15/packages/arduino/tools/CMSIS/4.5.0/CMSIS/Include/ -I/home/dwblair/.arduino15/packages/arduino/tools/CMSIS-Atmel/1.2.0/CMSIS/Device/ATMEL/ -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/cores/arduino -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/variants/itsybitsy_m4 -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/SPI -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/Adafruit_ZeroDMA -I/home/dwblair/Arduino/libraries/RadioHead -I/home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/Wire /home/dwblair/Arduino/libraries/RadioHead/RH_NRF51.cpp -o /tmp/arduino_build_266054/libraries/RadioHead/RH_NRF51.cpp.o
Using library SPI at version 1.0 in folder: /home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/SPI
Using library Adafruit_ZeroDMA at version 1.0.4 in folder: /home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/Adafruit_ZeroDMA
Using library RadioHead in folder: /home/dwblair/Arduino/libraries/RadioHead (legacy)
Using library Wire at version 1.0 in folder: /home/dwblair/.arduino15/packages/adafruit/hardware/samd/1.5.9/libraries/Wire
exit status 1
Error compiling for board Adafruit ItsyBitsy M4 (SAMD51).
Version 2
Remote now is done in Arduino, to allow for low-power Timer use. Wiring is described.
Gateway has same wiring as previous; but 'main.py' has changed. Data is now sent to a special server
No graphs yet on server (very soon!) but can test to see whether new data is arriving here
Streetwise
Here's a 'traffic accident and street flooding' app that is being used currently in NOLA -- they allow for users to report accidents or flooding:
Version 3
vl6180x Microlidar sensor from adafruit
Tutorial on using the sensor (with arduino code) here
{ batt: '3.680274',
dist: '0',
rssi: -25,
lux: '9.09',
status: '7' }