The DCF77 signal is a puls-signal with AM modulation with carrier frequency 77.5kHz. It has a small bandwidth. The carries include time and date information and will be transmitted in a simple binary-coded format by on-off modulation of the carriers. (100ms/200ms) The Signal time and date code include the following information: year, month, …
Making a ring wall clock with 1-meter long WS2812B LED strip with 60 RGB LEDs. (ماژول LED RGB WS2812) LED WS2812 حلقه یا RGB LED WS2812b پنج متری For clock I used a DS1307, which contains a real-time clock. Driver IC: I2C DS1307 Real Time Clock SCL Analog 5 (clock line) SDA: Analog 4 …
The LDR Sensor also know as the Photo-resistor is basically a simple sensor that its resistance value changes with light. (resistance will lower with more light.) The LDR isn’t very precise, so you can not get a LUX reading but it is good enough to tell the difference between light and shadow. It …
Making a Digital clock with Arduino boards. (ماژول ساعت DS1307) Components • Arduino board • DS1307 RTC Module I2C (SDA and SCL) • TM1637 7-segment I2C (CLK and DIO) The DS1307 uses I2C Protocol to communicate with arduino. There are a lot of examples on the Web to show how to use …
I’m using BK8000L Bluetooth module (SBC audio decoding performance) and as amplifier the PAM8403 board. (but you can use any other amplifier for example from you old PC speaker) Problem with feedback and noise If we want to power the both devices from the same power supply, It will get a lot …
Modification of IBM notebook power supply How can I modify the output of power supply from 16.8 to 12 volt?Most of the switched mode supplies are normally provide with a reference voltage to regulate the output, which is the heart of the device. Identify the voltage divider: First I opened the case …