Arduino sketch fails to restart after power cycle
When the sketch#1 is uploaded, it WILL NOT restart after a power cycle and must be reloaded. When the Blink program from the built in examples is uploaded it WILL restart after a power cycle. When the...
View ArticleMultiple interrupt functions but one interrupt vector
Hi Guys, I'm using a PIC16F877 40-Pin, MPLAB and Hi-Tech C compiler. I'm trying to use both an RB0/INT interrupt and PORTB (RB7:RB4) interrupt but keep getting the error: multiple interrupt functions...
View ArticleMicrocontroller debugging
I am facing run time issues while running the code. To trace such issues i developed one serial port program from which I can send data. Now my question is i want to receive this data on computer and...
View Article16X2 LCD display problem while measuring AC current
Hello, I am doing this project that measures AC current and then displays it on a 16X2 LCD. Everything works fine except that when I toggle the switch to turn the load on or off, the LCD display starts...
View ArticlePLC
I want to know how 32 Input ground (4 Ic 251) and 48 Output High ( 6 Ic 259) And a decoder ic, Can be used be controlled by arm processor minimum 3 To 6 Pin connection.
View Articlehow to interface zigbee with raspberry pi
My project is on iot and I connected a zigbee to 8051 micro controller which acts as a transmitter which sends data to another zigbee which acts as a receiver connected to raspberry pi.Now how to send...
View ArticleUart communication
I have seen several instances where uart or serial communication is possible without max232 ic. How is it possible? This i have observed in pickit2 serial communication.
View ArticleCurrent sourcing and sinking of AT89C51CC03
Dear I am trying to find out how much an I/O pin of the MCU can source our sink. I need to pull 4 enable pins of an ic high with 1mA with port 2 of the AT89C51CC03 that is powered on 3,3V (and voltage...
View Articlevery basic (general) microcontroller programming question
I'm just getting started in microcontroller programming. I'm using a Texas Instruments Tiva (ARM) micro controller board. I'm trying to learn direct register programming instead of using the API...
View ArticleInterfacing two serial devices with stm mcu
I want to interface two different UART modules (GPS and RFID) with stm mcu. Willing to connect it as USB host to Android phone and try to communicate with device via application. I need help , from...
View ArticleSTM8S003
IF INPUT TO STM8S003 IS SQUARE WAVE OF SAY 2MS THEN LED AT PORT A WILL BLINK AND IF ANOTHER SQUARE WAVE OF SAY 1MS IS APPLIED AT SAME INPUT PIN THEN LED AT PORTB WILL BLINK.....CAN ANYONE HELP ME HOW...
View ArticlePIC18f45k22 timer 1 not working properly
I am using PIC18f45k22's timer 1 to display D.PIC for 1 second on my 4 digit 7-segment led and after 1 second led should remain off for next 1 second. This should continue. I am getting what i wrote...
View ArticleLowest power possible for driving segment LCD glass with accurate time
What is the lowest power possible for driving segment LCD glass where most of the time the LCD display will just display the time with an accuracy of at least 20ppm. As I understand the components...
View ArticleTemperature measurement with LM35
Hi I am also a newbie in this world of MCU, Can you please help me with measurement tempetature with LM35 . I am struggling to figure it out how it works. Thank in Advance
View ArticleRaspberry Pi zero with camera
I just bought a raspberry pi zero and some other stuff from [mod. edit: link deleted, irrelevant] I am using it for image processing! Can you guyz tell me that the camera used for raspberry pi 3 will...
View ArticleEEPROM read/write operation using stm8s003....
please some one guide me how to use eeprom in stm8s003......
View ArticleWhich Microcontroller to Choose
Hello, I am a mechanical engineering graduate and I am looking interested in a career in the automotive industry in the field of electronic control systems. I know how to program in C but I am very new...
View ArticleHelp with TFT LCD
Hi all, I have salvaged a tft lcd from an epson printer and I want to interface it to an atmega. I couldn't find a datasheet of the ic on the lcd but I found the connector pinout. The pins are:...
View ArticleBuilding a 8051 programmer
Hello, I'm a newbie in microcontrollers. i thought i would make a 8051 programmer by myself (only the hardware). before going to the circuit, i would like to know how these processors (or any in...
View ArticleLed poi RGB
Hello! I built a poi similar to that http://lighttoys.cz/store/poi/zebra-poi-ft/ I have a problem with control poi, I used this mini controller...
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