Tag: esp8266

Electronics and Programming tutorials and projects

esp8266 esp32 microphone camera

ESP8266 ESP32 Microphone Camera Package

The ESP8266, ESP32 Microphone Camera Package includes ESP8266 WiFi Microphone, ESP32 WiFi Microphone, ESP32 IP Camera and ESP32 Camera Microphone projects firmware, Arduino .ino files, Schematics and PCB files. ESP8266, ESP32 Microphone Camera This package is called “WiCard Security System” which includes the following project source codes and manual files: You can either use the…
Read more

esp32-cam time lapse

ESP32-Cam Camera Microphone

This article is about “WiFi ESP32-Cam Camera Microphone (SpyCam)” firmware project which has been made by Ai Thinker ESP32-Cam module, the circuit (or WaveShare Sound Sensor) and arduino source code (.ino) files. The firmware includes a Web Application (WebApp), to access to this WebApp, there’s no need to internet connection or installing a software or…
Read more

wireless microphone

Wireless Microphone With ESP8266 and ESP32-Arduino

This article is about how Wireless Microphone works. This is a firmware project Arduino source code (.ino files) for ESP8266 and ESP32 WiFi modules. With this firmware, you can have online audio stream and optionally the modules will be able to record the audio automatically with noise detection algorithm. You can build the project simply…
Read more

wicard programmable wifi module 5

Prices of Electronics and Programming projects

You can get the general releases of the projects for free or at low prices through the link below, or inquire a customized project (either one of the general programming/electronics/arduino project or a new project) through our contact form. https://wicard.net/projects Basic prices for inquiring a standard PCB design with schematics: The basic price of designing…
Read more

html tags

HTML tags and how to use

In the design of web pages, the HTML tags are using to make changes in the text or to insert the template, page elements and programming codes. This article examines some examples of the commonly used HTML tags. Also you can use this tutorial to learn how to design a basic Web Application template for…
Read more

esp32-cam avi video file export

ESP32-CAM AVI Video Output File

With this arduino source code, you can record a video and time lapse and export the recorded videos as an .avi file. ESP32-cam AVI video exporter has been added to the “IP Camera” and “Camera Microphone” new firmware revision. In the following short video, I have showed the time lapse and .avi file export features,…
Read more

arm lpc1768 sim908 gps gms gprs

ARM LPC1768 Operating System

About ten years ago, I’d like to start an operating system project for the sell phones like Android and Symbian. So I started to make a cell phone with ARM LPC1768 processor and SIM908 GPS/GSM/GPRS module. After a little struggle I succeed and built my basic design, but due to the situation, I couldn’t take…
Read more

WiFi controllable robot 4 - WiCard 并联和串联电阻器

Advantages and disadvantages of connecting resistors in series and parallel

Based on experience, in standard circuit design, I do not recommend to connect resistors in parallel or series. However, sometimes due to reasons such as the need for high consumption power, we may need to use series and parallel resistors. This article was requested by one of the visitors. ***””Electronics, Programming and Arduino projects, including…
Read more

Operational Amplifier IC (OP-AMP)

Operational Amplifier ICs (Op-Amp ICs) are usable for amplifying weaker voltages and currents. For example, the output of a signal generator with is a current of 10 micro-amps with 3 volts oscillation, but our circuit needs a 3 volts signal with a 3 milli-amps current. With using an operational amplifier, we provide the required current…
Read more

pwm amplifier

Transistor amplifier

In general, a transistor amplifier is a circuit for amplifying an analog signal or a digital data carrier signal. For example, the output audio signal of a microphone is very weak and the audio oscillation is in a very low voltage range. With a transistor audio amplifier, its output can be increased to the standard…
Read more