Embedded System Project - IC 2017
This is the software for the first prototype of a pill dispenser platform. This unit will assist patients in taking medicine to enable them to be more independent and have a higher quality of life.
This system is designed on the micropython platform. To learn more click here!
Please see below for the block diagram of the system.
The componants used: Feather HUZZAH ESP8266 Adafruit TMP007 Sensor Breakout
Software needed:
To get Esptool: pip
upgrade pip:
`pip install --upgrade pip`
To flash Feather board: Esptool
Getting esptool.py:
`pip install esptool`
To connect mac with Feather board with COM port: Screen [built-in in mac]
MicroPython for ESP 8266
http://micropython.org/download#esp8266
Find which port is Feather connected to ls /dev/cu.* e.g. /dev/cu.SLAB_USBtoUART
Installing MicroPython
- Erase old firmware
esptool.py --port /dev/cu.SLAB_USBtoUART erase_flash
- Flash Firmware
esptool.py --port /dev/cu.SLAB_USBtoUART --baud 115200 write_flash --flash_size=detect 0 ~/DEV/EmbeddedSystem/firmware/esp8266-20170108-v1.8.7.bin
Connect to Feather board via COM prot:
- Establish connection
screen /dev/cu.SLAB_USBtoUART 115200
(You might need to press return key several times to get >>> to appear)
I2C Setup
-initialize access to the I2C bus
import machine
i2c = machine.I2C(-1, machine.Pin(5), machine.Pin(4))
- Scan for connected i2c device
i2c.scan()
e.g. [64]
TMP007 Pin setup AD1 AD2 are customised address e.g. AD1=AD2=GROUND => SMBus Address = 1000000 First 5 bits are set by manufacturer. => the last bit (LSB) made up the byte indicates read (1) or write (0)
The system uses HiveMQ as the MQTT broker - you can view it's status here!