Junaid's Blog

STM8S: Timer 2 with Overflow Interrupt

In previous post I showed how we can use Timer 2 as simple counter. In this post I am going to show how we can program to have interrupt when its value overflow. As simple experiment, we will toggle an LED in each second within the interrupt handler (also called ISR, Interrupt Service Routine).

January 20, 2018
STM8S: Use Timer 2 as Simple Counter to Blink LED (without Interrupt)

Timers inside MCUs are very useful and essential peripherals for timing applications. In this article I will show Timer 2 in an STM8S (specifically STM8S103F3) can be used to blink an LED.

January 15, 2018
Program STM8S Development Board with ST-Link v2

I successfully programmed development board having STM8S103F3P6. It is quite simple to make it blink LED. For me, it was second easiest after Arduino Uno to get started. I used SDCC as the C compiler, ST-Link v2 clone as programmer, and stm8flash to flash the binary file through ST-Link.

January 5, 2018
Program AVR Microcontroller with USBTinyISP and Eclipse IDE

In this post I will detail out how we can program an AVR microcontroller, specifically ATTiny13a, with USBTinyISP and Eclipse IDE in Linux environment. I am using Ubuntu 16.04 LTS. I hope it will work in other distributions with little or no modifications.

January 4, 2018
One Channel Relay Module

Here is the schematic and details for creating one channel relay module. It would be capable of driving both DC and AC current when appropriate relay is used. We can connect output pin of most of microcontrollers including Arduino to control it.

January 1, 2018
Program Arduino Pro Mini with CP2102 USB to TTL Coverter module

I like Arduino Pro Mini boards more than other Arduino boards. Mainly because of its minimalist design. But Arduino Pro Mini does not have built in USB interface to program it directly like we do in Arduino Uno. However we can program a Arduino Pro Mini easily using a cheap CP2102 USB to TTL converter […]

December 11, 2017
Cheap Dual Voltage Regulator

Here is the schematic design to create a dual voltage regulator to power our Arduino and other small circuits. It is built around AMS1117 low drop out voltage regulators.

November 17, 2017
Resistor Color Codes

List of standard resistor color codes are given here.

October 26, 2017
Install Driver for TP-Link TL-WN823N in Raspberry Pi 2 Model B

Recently I brought TP-Link TL-WN823N wireless USB adapter to connect my Raspberry Pi over wireless network. Mine is Raspberry Pi 2 Model B, so not having built in wireless capability. I chose TP-Link TL-WN823N over Edimax EW-7811Un because of its 300 Mbps speed, both were available on amazon.in with similar price. It did not get […]

July 11, 2017
കീമാൻ

വിക്കിപീഡിയയിലും കീമാജിക്കിലും ഉപയോഗിച്ച അതേ മലയാളം മൊഴി രീതിയിലുള്ള കീബോർഡ് കീമാനിനു വേണ്ടിയും തയ്യാറാക്കി. അതിന്റെ കൂടുതൽ വിശദാംശങ്ങളിലേക്ക് കടക്കുന്നതിനുമുൻപ് കീമാനിനെ കുറിച്ച് ചെറിയൊരു ആമുഖം നൽകാം.

June 15, 2017