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The Internet Of Things (IoT), MQTT and Cayenne Introduction During the AIS conference 2019 in Kampala, Uganda, a 2 day workshop on IoT is held. IoT nodes consist...
A WEB server on the Microcontroller with MicroPython Introduction In the 2019 AFNOG course we have seen how to connect to sensors and actuators through Cayenne and...
Abstract IoT, the Internet of things has become kind of a buzz word. Everybody talks about it but there are few people who really know what is hidden behind the acronym...
The BMP180 barometric pressure and temperature sensor This board uses a Bosch BMP180 I2C barometric pressure and temperature sensor. The driver version of the BMP...
The Buzzer shield The Hardware The buzzer shield implements a passive buzzer with frequencies up to 1 kHz 3 kHz. By default it uses data line D5 corresponding to...
Communicating over MQTT MQTT, the Message Queuing Telemetry Transport protocol is the communication protocol of choice in many IoT applications. It uses a broker receiving...
The DHT11 temperature and humidity sensor The DHT11 is a temperature and humidity sensor using its own private protocol. Fortunately a driver is again available in...
The DS18B20 1 wire temperature sensor The DS18B20 is a high precision temperature sensor using Maxim`s 1 wire protocol. Again a driver is already available in the...
Introduction to Internet of Things (IoT) Session 1: Introduction to IoT and Python Isaac Armah Mensah University of Cape Coast, Ghana Introduction of Lecturers...
Using the Atmel AVR Arduino as IoT node Introduction Together with the Raspberry Pi the Arduino is one of the most popular platform in embedded systems. The family...
The Raspberry Pi as an IoT node Running Cayenne on the Raspberry Pi is certainly the simplest way to get your sensors connected to Cayenne. All you need to do is downloading...
The LED matrix shield This shield provides a 8x8 led matrix where each led can be individually be switched on and off and its intensity be controlled. The program...
Setting up an IoT Session 3: MQTT and Cayenne Uli RaichFormally CERN, Geneva, Switzerland The Network Layers The WeMos D1 mini has a built in WiFi interfaceIn order...
The OLED shield This shield features a 64x48 pixel OLED display. We would normally not connect it as IoT sensor but it comes it handy to display the state of out WeMos...
Setting up and IoT Session 4: Sending real measurement data to Cayenne and receiving commands and executing them on the hardware Uli Raich formally CERN, Geneva, Switzerland...
A simple push button switch The simplest WeMosD1 shield is just features a single push button. It uses the WeMos` ESP8266 D3 pin which corresponds to GPIO 0. Testing...
The SHT30 I2C temperature and humidity sensor The is a temperature and humidity sensor interfaced through the I2C protocol. A micro Python driver can be found at https...
Exercises for session 3: MQTT and Cayenne Exercise 1: Install mosquitto on your machine. On Ubuntu Linux this can very easily be accomplished with apt. On Windows...
Exercise 1: Go through the tutorial on https://mydevices.com/cayenne/docs/cayenne mqtt api/#cayenne mqtt api manually publishing subscribing in section `Manually...
What is IoT? An IntroductionUli Raich (uli.raich #64;gmail.com)Formally CERN, Geneva, Switzerland What is IoT? Answer: IoT is the Internet of ThingsBut...
What is IoT? A talk given during the AFNOG 2019 conference Abstract: Everybody is talking about IoT, the Internet of Things. However, few are the people who deeply...
The WS2812B RGB LED shield On this board we have the addressable WS2812B RGB LED. This LED is used in many LED chains. The board uses D2 (GPIO 4) as data line (or...
The WeMos D1 mini and its sensor and actuator shields Introduction We have seen that the ESP01 can be programmed with micro Python and that there are add on sensor...
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Hands on exercises for the workshop on IoT Session 1 Introduction to IoT and Python Session 2 Hardware access and Micropython Session 3 MQTT and Cayenne...
Workshop Slides Lecture Slides Session 1: Introduction to IoT and Python Session2: Hardware access and Micropython Session 3: MQTT and Cayenne Session...
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