When you want to turn your unused Raspberry Pi into a security camera, you can take a look at motionEyeOS.
So what is motionEyeOS? In short, motionEyeOS is a Linux distribution that turns your single board computer into a video surveillance system. Therefore, it is convenient to setup a Raspberry Pi security camera with motionEyeOS.
Given these points, let us look at how we can setup a Raspberry Pi security camera with motionEyeOS.
When I wrote about setting up MicroPython on an ESP development board, I came across the WebREPL.
If you setup MicroPython WebREPL on your ESP32 board, then you can interact with your ESP32 board wirelessly.
In case you need it, this is how to setup MicroPython WebREPL on your ESP32 development board.
When sending data from your ESP32 development board, you may choose to send the data in JSON.
In such a situation, you can consider using ArduinoJson to help you construct the JSON data.
Given that, let us look at how we can post JSON data to a HTTP server endpoint from a ESP32 development board with ArduinoJson.
When you connect your ESP32 board to the internet, you may need to send HTTP Basic Authentication requests.
In this situation, we can rely on the HttpClient library from the Arduino core for ESP32.
Given that, this post shows how you can send a HTTP Basic Authentication request from your ESP32 development board.
When you have an RFID starter kit from Sparkfun, you will be able to read RFID tags through serial.
Previously, we saw how to use an ESP32 board to read RFID tags from a SparkFun RFID USB Reader.
Given that, I was able to build a ESP32 prototype to scan tag ids from RFID cards.
In order for that ESP32 prototype to recognise what each of my tag card represents, I need to label the ids. Whenever my ESP32 prototype gets a tag id, it will query a tag catalogue to see what that tag id represent.
Since it is easier to label the tag cards from a computer, I built a Python 3 application to read the RFID tags from the SparkFun RFID reader.
So how we can read RFID tags from SparkFun RFID USB Reader with Python 3?
If you are looking for a way to read RFID tags from SparkFun RFID USB Reader with Python 3, then this post is for you.
When I try to reuse the Ardunio Sketch to control a servo motor with a ESP8266, I encountered the following error during compile time:
WARNING: library Servo claims to run on (avr, sam, samd, nrf52, stm32f4) architecture(s) and may be incompatible with your current board which runs on (esp32) architecture(s).
In file included from /Users/i309663/Documents/learning/Arduino-sketches/sketch_arduino_servo/sketch_arduino_servo.ino:1:0:
/Users/i309663/Arduino.1.8.7/Arduino.app/Contents/Java/libraries/Servo/src/Servo.h:73:2: error: #error “This library only supports boards with an AVR, SAM, SAMD, NRF52 or STM32F4 processor.”
#error “This library only supports boards with an AVR, SAM, SAMD, NRF52 or STM32F4 processor.”
^
exit status 1
Error compiling for board ESP32 Dev Module.
Therefore, I had to find another way to control my SG90 servo motor with an ESP32 development board.
Given that, this post shows how to control a servo motor with an ESP32 development board.
If you have a Proximity/Light sensor, you will be able to detect how close an object is. When your range of detection is within 200mm, you can use the VCNL4010 Proximity/Light sensor.
Given that characteristic, you can use the VCNL4010 Proximity/Light sensor as a contactless switch to trigger some action.
For example, you can use it in a soap dispenser that will dispense some soap when a palm is near the nozzle.
In case you need it, this is how to use an ESP32 development board to read from a VCNL4010 Proximity/Light sensor.
When you have an RFID starter kit from Sparkfun, you will be able to read RFID tags through a serial connection.
Although the SparkFun RFID USB Reader comes with a USB port, you can also read RFID tags with an ESP32 development board.
In case you need it, this is how to use an ESP32 development board to read RFID tags from a SparkFun RFID USB Reader.
When I did a Raspberry Pi 4 Model B review, I got myself a Raspberry Pi 4 Model B. Therefore, the current Raspberry Pi 3 Model B+ that I have been using for validating Raspberry Pi ideas became available for another IoT project in the house.
So what should I do with my Raspberry Pi?
Since I have always wanted to build my own indoor herb garden, I plan to use it to help my plants grow well.
When I bought the LED Grow Lights, I am able to give my plants consistent lighting. Given that consistent lighting is solved, I can use my Raspberry Pi 3 to monitor soil moisture so that I can provide water my plants better.
Given these points, this is a proof of concept that I did to read soil moisture level with my Raspberry Pi and a YL-69/FC-28 moisture sensor.
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