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Introduction Are you tired of manually logging data from your ESP32? Would you like to automate the process? Well, the good news is that it’s very simple. In this article, we will cover a comprehensive, step-by-step process on how to send data from either an ESP32 or ESP8266 to Google Sheets. Esp32 is a powerful microcontroller capable of connecting to WiFi, different devices, and sensors. To effectively collect data from other devices and manage it, you need an intelligent system that can store a signifi...

AP3216 Sensor Features The AP3216C is an integrated ALS & PS module that includes a digital ambient light sensor [ALS], a proximity sensor [PS], and an IR LED in a single package. This module is well suited to applications under clear glass or darkened glass. The proximity function is targeted specifically towards near field application and detects external object with simple configurable zone controlled by registers.  Note You need a 220 to 470 ohm resistor to interface this module. ...

2.2 INCH Full Color TFT Display Features The TFT display is a kind of liquid crystal display that is connected to each pixel using a transistor and it features low current consumption and backlight. This 2.2-inch full color LCD has a narrow PCB screen. The resolution is 320x280 pixels and it has a four-wire SPI interface and white backlight.This display also has a touch screen and SD card slot. Note The module voltage is 3.3 V and a voltage divider is required to interface it with Arduino. ...

GY-31 TCS3200 Color Sensor Features The TCS3200 color sensor uses 64 photodiodes to detect color. The output of this sensor is a square wave. Color intensity is obtained directly from the frequency of the square wave. These 64 photodiodes consist of 16 diodes with red filter, 16 diodes with green filter, 16 diodes with blue filter and 16 transparent photodiodes without filter. All 16 diodes of each type are connected in parallel. To detect any color, the photodiodes corresponding to that color are activ...

AD8232 ECG Module Features The AD8232 sensor can provide you to monitor electrocardiographic or ECG signals. Analyzing these signals prepares useful information about heart function, such as heartbeat rate, heart rhythm, and other information regarding the heart’s condition. This module can be connected to a microcontroller on one side and to specific parts of body on the other side using 3 special electrodes. The signal received through the electrodes can be seen in the analog output of the sensor. ...

LoRa SX1278 Transceiver Module Features Electronic devices need to be connected wirelessly in so many cases. In these cases, Radio Frequency or RF equipments are used. RF modules include all radio waves that can travel different distances and reach the receiver according to their frequency and amplitude. LoRa is a popular technology that is perfectly suitable for IoT projects with long distance communications. This module is an Ai-Thinker technology module which also produces ESP32 series. This module...

Introduction Similar to Arduino IDE, Platform-IO is a programming environment for all types of microcontrollers. It provides an easier programming process and is available as an extension for the VS Code software. One notable advantage of Platform-IO IDE over Arduino IDE is that it automatically selects the appropriate port. In addition, Platform-IO IDE offers code suggestions to help complete and modify your code, and it eliminates errors caused by case sensitivity in Arduino IDE! Some other attractive fea...

Introduction Have you ever had difficulties while uploading code to an ESP32 board? This article deals with one of the most common errors that occurs during code uploading: “Failed to connect to ESP32: Timed out waiting for packet header.” To tackle this problem, we will introduce two methods. Steps to Troubleshooting “Failed to connect to ESP32” Error First of all, disconnect all wires connected to the ESP32 board. This simple thing might solve the issue! (Because the serial or USB pins could be in...

Introduction Have you ever wondered about wireless serial communication? It’s one of the most popular methods for people working with microcontrollers, especially the Arduino family. With this type of communication, you can send and receive all sorts of text data and even debug your code. But sometimes, dealing with all those wires can be difficult, especially when one side of the connection is hard to reach. So, it would be awesome if you could just make this connection wireless. In this tutorial, we'll ...