Posts by Ibrar Ayyub:
Chrome Apps and serial port communication
Posted on: 17 Aug 2017
Introduction During the development of my electronic projects, I sometimes need to develop a graphical user interface (GUI) that talks using serial communication with the devices I create. In the past, I usually chose to develop those interfaces in C# and using the .Net Framework; framework which allows a rapid development, offers great ways to customize the interface (for […]
Programming a Picaxe 08m chip
Posted on: 17 Aug 2017
After I got my Arduino I felt the urge to brush up on my general electronics knowledge. The last time I’d really played with any circuits was back in about 1994 when I was studying my Technology GCSE – which now is quite a long time ago. So I picked up a copy of Make: […]
Simple USB to RS232 adapter on pic18f2455
Posted on: 16 Aug 2017
Overview This adapter allows you to interface with your car’s OBD-II bus. It provides you a USB interface using the ELM327 command set and supports all major OBD-II standards: SAE J1850 PWM SAE J1850 VPW ISO 9141-2 ISO 14230-4 ISO 15765-4 CAN Hardware You do not have to be familiar with all the details of […]
How to do serial comms using the cheap RF 433/315 MHz modules
Posted on: 16 Aug 2017
These cheap RF modules usually come in a pair, with one transmitter and one receiver. A pair can be bought on ebay for as cheap as $4, and even as cheap as $2 a pair if you buy 10 pairs. Much of the information on the internet from people’s projects is sketchy and not very […]
PIC12F629 Lead-Acid Battery Desulfator
Posted on: 16 Aug 2017
Hi everyone, After reading so many articles on Battery desulfator i’ve decided to come out with my version of Battery desulfator using Microchip base micro-controller using PIC12F629 or PIC 12F675. “Please pardon my english” .I don’t really have time to check for minor grammatical errors. Before we begin this circuit although simple in design requires […]
Laser show for poor man using PIC18F1220 microcontroller
Posted on: 15 Aug 2017
Laser show for poor man Here’s another useless but cool looking “must build” gadget for every romantic geek. Let me introduce PIC microcontroller based three axis laser spirograph. Step 1 Gathering stuff Design is quite simple and employs regular parts and components but you are free to change/modify it in way you like. At first […]
LTM8053 – 40VIN, 3.5A/6A Step-Down Module Regulator
Posted on: 15 Aug 2017
Features Complete Step-Down Switch Mode Power Supply Wide Input Voltage Range: 3.4V to 40V Wide Output Voltage Range: 0.97V to 15V 3.5A Continuous Output Current, 6A Peak Parallelable for Increased Output Current Selectable Switching Frequency: 200kHz to 3MHz External Synchronization Programmable Soft-Start Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS Compliant BGA Package Description The […]
Simple 3 Resistor PIC Programmer
Posted on: 15 Aug 2017
Micro-controllers play a very important role in electronics, as they are able to perform tasks in automation, control, image processing, among others. Their usage is immense. There are various families of micro-controllers, one of those is the Microchip’s PIC (Peripheral Interface Controller). PICs are very popular as they are relatively cheap and because of their […]
Intersil has RS-485 transceiver running off 1.8V
Posted on: 14 Aug 2017
Description The Intersil ISL32600E, ISL32601E, ISL32602E and ISL32603E are ±15kV IEC61000 ESD protected, micro power, wide supply range transceivers for differential communication. The ISL32600E and ISL32601E operate with VCC ≥ 2.7V and have maximum supply currents as low as 100µA with both the transmitter (Tx) and receiver (Rx) enabled. The ISL32602E and ISL32603E operate with […]
LM317 smooths but doesn’t regulate
Posted on: 14 Aug 2017
A well known power supply circuit is the capacitance multiplier. It doesn’t regulate, but instead reduces ripple & noise while the output tracks at some fraction of the input voltage. The R1/R2 voltage divider determines VOUT (a VBE below VB), and must be chosen to account for the maximum ripple on the minimum VIN. […]