Servo motor arduino pet feeder5/6/2023 Water level is sended from Arduino to NodeMcu every 2 sec.Īnd set all to outputs and LOW : pinMode(enA, OUTPUT) NodeMcu receive a message, process it and sends to Arduino which controls the actuator. For emptying a tank, just remove sensor from bowl.Manually - activate the pump with Android app, but it's going stop itself when it reaches a certain level - a full bowl.Auto - activates the pump when the water level is low, and stops it when it reaches a certain level - a full bowl.So I recommend real water sensor, or DIY version. Soil moisture sensors did not prove to be good - they corrode quickly. Water level detector (or soil moisture sensor).L298N motor driver - connected to 12V power supply.I played with these values until I got the desired result. #define SERVO_PIN 3įeeding will be done with this code. It will serve until the stepper motor arrives. But with all the possibility of monitoring the project, it is not a big problem. The opening on both sides should be as large as possible, so that the food does not get stuck, so it is not the most reliable solution. 5v power supply - I used L298N 5V output.Case for food (something like Pringles tube).It uses just one servo motor so it's easy to build it. Pros: Real-time communication from anywhere in the world. ![]() I deployed server for free on SmarterASP. I created ASP.NET Core web app with websocket. So, there was a third option - to create my own "middleware" server for using it between Android and Arduino. Pros : Works globally (You can control it from anywhere in the world).Ĭons : Not in real-time - ThingSpeak have 15 seconds period to collect and show data. But I didn't like the 15-second Thingspeak period at all, because I didn't use it to collect data, but to control the actuators in real time. So, due that, I create another one, this time with the help of ThingSpeak. At first, I created direct communication between Android and ESP8266. Asp.Net Core Web API with WebSocket as middleware for real-time communication. ![]() Xamarin.Android for Android application.Master/Slave I2C connection between ESP8266 and Arduino Uno ( ESP-01 and Android Nano).The project was completed using the following technologies: ESP-01 and Arduino Nano (my second project setup).ESP8266 and Arduino Uno ( my first project setup).I used two setups for this project, and I will cover both of them: Android and Asp.Net Core server communication.Websocket communication between microcontroller and ASP.NET Core server.I2C Communication between two microcontrollers.Note for the user: If you desire to change the mode in between the treatment, you need to first decrease the intensity knob to zero and after that only you can switch to another mode.In this project tutorial I will show you how to create: 6) Now begin the treatment by slowly increasing the intensity. 5) Insert the cable in the socket provided on the front panel. This is given for each individual current Type as follows: 4) Prepare the treatment area on the patient body and attach the electrodes using electrode straps. 3) Select the Parameters Of various stimulation current as per user requirement. IG-Ims: 1 msec Pulse width IG-5ms: 5 msec Pulse width IG-10ms: 10 msec Pulse width b) Surged Faradic: S.FAR 1: 1 Sec On/OFF S.FAR 2: 2 Sec On/OFF S.FAR 3: 3 Sec On/OFF c) TENS Continuous ON with frequency Modulation, so in this mode frequency will keep on changing to avoid accommodation and to increase the endorphin secretion. a) Interrupted Galvanic: In this mode frequency is constant at I pulse per second and width of the current will change depending upon the mode selected. ![]() The available options are Interrupted Galvanic (IG-1ms, IG-5ms, IG- 10ms), Surge Faradic (S.FAR-1, S.FAR-2, S.FAR-3) and TENS. 2) Select the mode as per your requirement, using mode switch present on the front panel. Make sure that the intensity Control is set to minimum before switching ON. 1) Connect the Two pin mains cable wire in the mains socket. Computerized Portable Stimulator The Following section gives a step by step account of how to use the computerized portable stimulator.
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