![Flashing Firmware
3. Upload Firmware into Chip
3.1 Mac / Linux:
esptool.py -b [baud-rate] -p [device] write_flash [address] [firmware-file-name]
Example:
esptool.py -p /dev/ttyUSB0 erase_flash
esptool.py -b 115200 -p /dev/ttyUSB0 write_flash 0x00000 Official-
v1.3.0.2_AT_Firmware.bin
roiet.io
35](https://image.slidesharecdn.com/iot1012017-170224125614/85/Internet-of-Things-IoT-workshop-with-wifi-chip-35-320.jpg)
Internet of Things (IoT) - workshop with wifi chip
- 1. Internet of Things(IoT) workshop through wifi chip บริษัท เรียลไอที จำกัด Mr. Pairoch Julratroiet.io FACULTY OF INFORMATICS MAHASARAKHAM UNIVERSITY 17 February 2017 1
- 3. What is Internet of Things Source: OpenSAP Internet of Things (IoT) or Internet of Everything (IoE) refers to devices or objects that are connected to the Internet, like your smartwatch, lamp, or even your refrigerator. These devices are able to collect and transmit data via the Internet, contributing to our big data world. roiet.io 3
- 6. Note: Gartner Hype Cycle Source: thailibrary.in.th 1 2 3 4 5 roiet.io 6
- 7. How Big is the IoT? Some analysts estimate the number of connected devices by 2020. Gartner — 20 billion Cisco — 50 billion Intel — 200 billion World Population: 7.5 Billion (2017) roiet.io 7
- 8. Economic Impact McKinsey believes that the market for IoT could reach $11.1 trillion by 2025roiet.io 8
- 9. IP Address Needs • IPv4, handle a maximum 4.3 billion unique IP addresses • IPv6, expands from 32 bits (IPv4) to 128 bits • IPv6, we will have 340,282,366,920,938,463,463,374,607,431,768,211,456 unique IP addresses. Source: Cisco roiet.io 9
- 10. Make things connected Wireless Wire roiet.io 10
- 11. Wireless Wire Make things connected roiet.io 11
- 12. Make things connected Wifi Chip 10101101 roiet.io 12
- 15. ESP8266 wifi chip Hardware: 1. CPU 2. Memory (RAM/ROM) 3. General Purpose I/O (GPIO) 1 2 3 ESP-01 roiet.io 15
- 17. ESP8266 Models Flash = 512KB Flash = 4MB roiet.io 17
- 20. ESP-01 How to program/flashing that chip. roiet.io 20
- 24. ESP-12 Breakout Board EspressoLite NodeMCU WeMos (ESP-WROOM-02) roiet.io 24
- 25. Programing Platform AT command Arduino (C) MicroPython roiet.io 25
- 26. Work Shop! 26
- 27. Set Environment Download then Install ArduinoIDE (www.arduino.cc) Start Arduino and open Preferences window. • Enter http://arduino.esp8266.com/stable/ package_esp8266com_index.json into Additional Board Manager URLs field. • Open Board Manager from Tools > Board > Board Manager and then install esp8266 by ESP8266 Community roiet.io 27
- 28. Set Environment Install dependency libraries • Open Library Manager (menu Sketch > Include Library > Manage Libraries…) then install libraries you want. DHT sensor library by Adafruit Adafruit GFX Library by Adafruit ESP8266 Oled Driver for SSD1306 display by Daniel Eichborn HttpClient by Adrian McEwen PubSubClient by Nick O'Leary roiet.io 28
- 29. Set Environment USB-Serial communication Most microcontrollers these days have built in UARTs (universally asynchronous receiver/transmitter) that can be used to receive and transmit data serially. UARTs transmit one bit at a time at a specified data rate (i.e. 9600bps, 115200bps, etc.). This method of serial communication is sometimes referred to as TTL serial (transistor-transistor logic). Serial communication at a TTL level will always remain between the limits of 0V and Vcc, which is often 5V or 3.3V. The RS-232 standard a logic high ('1') is represented by a negative voltage from -3 to -25V, while a logic low ('0') transmits a positive voltage that can be anywhere from +3 to +25V. On most PCs these signals swing from -13 to +13V. Source: sparkfun.com TTL / UART RS-232 Sending 0b01010101 roiet.io 29
- 30. Set Environment USB-TTL chip (ie. FTDI, CH340, CP2102 ) roiet.io 30
- 31. Set Environment Install driver for USB-TTL chip Mac / Linux: Download: http://www.realitlimited.com/training/ msu/2017-02-17/IoT101/CH340_Mac.zip roiet.io 31
- 32. Set Environment Install driver for USB-TTL chip Windows: Download: http://www.realitlimited.com/training/ msu/2017-02-17/IoT101/CH34x_Windows.zip or http://www.wch.cn/download/CH341SER_EXE.html roiet.io 32
- 33. Flashing Firmware 1. Download Firmware (.bin) www.realitlimited.com/training/msu/2017-02-17/ IoT101/Firmware.zip roiet.io 33
- 34. Flashing Firmware 2. Download Flasher 2.1 Mac / Linux: #pull the source code from git repository $git clone https://github.com/themadinventor/ esptool.git $cd esptool $sudo python setup.py install 2.2 Windows: www.realitlimited.com/training/msu/2017-02-17/ IoT101/Flasher.zip or https://github.com/nodemcu/nodemcu-flasher roiet.io 34
- 35. Flashing Firmware 3. Upload Firmware into Chip 3.1 Mac / Linux: esptool.py -b [baud-rate] -p [device] write_flash [address] [firmware-file-name] Example: esptool.py -p /dev/ttyUSB0 erase_flash esptool.py -b 115200 -p /dev/ttyUSB0 write_flash 0x00000 Official- v1.3.0.2_AT_Firmware.bin roiet.io 35
- 36. Flashing Firmware 3. Upload Firmware into Chip 3.2 Windows: roiet.io 36
- 37. First Test Open Arduino IDE. Select Board & Port roiet.io 37
- 38. First Test Select Baud Rate (Upload Speed): 115200 roiet.io 38
- 39. Serial Monitor Talking with Chip roiet.io 39
- 40. AT Command Talking with Chip roiet.io AT AT+GMR (version firmware) AT+CWMODE? (Check mode) 1=Client 2=Server(AP) 3=AP+Client AT+CWMODE=1 AT+CWLAP (list the Access Point nearly) AT+CWJAP=“ชื่อ AP”,”ระบุ password” AT+CIFSR (list the obtained IP & Mac address) 40
- 41. 1.1 Coding Structure Lab1: Hello World roiet.io 41
- 42. 1.1 Wiring Lab1: Hello World roiet.io Breadboard LED Resister 42
- 43. Pin Identification WeMos Pin Mapping with Arduino / MicroPython roiet.io >Digital pins 6—11 are not shown on this diagram because they are used to connect flash memory chip on most modules. Trying to use these pins as IOs will likely cause the program to crash. >Note that some boards and modules (ESP-12ED, NodeMCU 1.0) also break out pins 9 and 11. These may be used as IO if flash chip works in DIO mode (as opposed to QIO, which is the default one). >Pin interrupts are supported through attachInterrupt, detachInterrupt functions. Interrupts may be attached to any GPIO pin, except GPIO16. Standard Arduino interrupt types are supported: CHANGE, RISING, FALLING. 43
- 44. 2.1 Analog read Lab2: Analog roiet.io 44
- 45. 2.1 Wiring Lab2: Analog roiet.io Breadboard Joy Stick LED Resister 45
- 46. 2.2 Analog read condition to turn on LED Lab2: Analog roiet.io 46
- 47. 2.3 Analog Write to dimming LED Lab2: Analog roiet.io 47
- 48. 3.1 Hello World same as Lab1 Lab3: Arduino roiet.io 48
- 49. 3.1 Hello World same as lab01-Blink Lab3: Hello Arduino roiet.io 49
- 50. I2C Wiring Master and Slave Lab4: I2C roiet.io 50
- 51. Pin Identification Arduino Nano Pin Mapping roiet.io 51
- 52. Pin Identification Arduino UNO Pin Mapping roiet.io 52
- 53. 4.1 OLED (lab04.1-OLED-I2C-Polygon) 4.2 OLED (lab04.2-OLED-My-Name) Lab4: I2C roiet.io 53
- 54. 5.1 Connect to internet as Wifi Client. (lab05.1-Go-Internet) Lab5: Go Internet roiet.io 54
- 55. http://www.blynk.cc/getting-started Blynk is an Internet of Things platform with a drag-n-drop mobile application builder that allows to visualize sensor data and control electronics remotely. Lab6: Blynk roiet.io 55
- 56. Authentication by Token. Lab6: Blynk roiet.io 56
- 58. 6.1 Wiring Enhance with Relay Lab6: Blynk roiet.io Breadboard LED Resister Relay 58
- 59. 6.1 Wiring Enhance with Relay Lab6: Blynk roiet.io 59
- 60. Temperature & Humidity Sensor Lab7: DHT roiet.io Breadboard DTH11/22 LED Resister 60
- 61. 8.1 Send DHT data to Thingspeak Lab8: Thingspeak roiet.io 61
- 62. • A machine-to-machine (M2M)/ IoT protocol. • Lightweight publish/subscribe messaging. • Small sensors and mobile devices. • mqtt.org roiet.io MQTT 62
- 64. Real World Applications Wireless Emergency Whistle roiet.io 64
- 65. Real World Applications Smart Socks for Diabetics roiet.io 65
- 66. End ATMs are considered some of the first IoT objects, and went online as far back as 1974. roiet.io 66
- 68. 68