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  1. M

    FDT434P pspice simulation model

    Hi, I have to do a simulation in LTSpice, and unfortunately I don't have a simulation model for FDT434P. On the fairchild web page there is a simulation model, but it was the extension .mod https://www.fairchildsemi.com/pf/FD/FDT434P.html Could you help me please with a simulation model for...
  2. M

    Alternative for MCP9510

    Hi, I have to do a redesign, and I have to replace MCP9510 component with a AEC one. Could you recommend me some automotive alternatives? Thank you.
  3. M

    help with code for rfPIC12F675

    Hi, Could you help me please with an example of C code for rfPIC12F675? It is my first RF application. The application is going to work at 433MHZ, ASK mode. Thank you.
  4. M

    PCB integrated antenna

    Hi, I am pretty new in the RF domain. The topic of my actual project is to design a remote control working at 433MHz. I made the schematics, and now I have to do the layout. The problem is, that I have to integrate the antenna in the PCB. I saw some examples of loop antenna on the PCB, but for...
  5. M

    433Mhz remote control circuit help

    Hi, I have to develop a wireless remote control on 433Mhz. There are some mechanical requirements regarding the dimensions of the PCB, it should be similar with a car remote door opener. The power supply is a coin battery of 3V, type CR2032. It has 3 buttons with which it can control 3...
  6. M

    how to drive an linear actuator

    Hi, I have to drive a linear actuator on my project wit a PIC18F2620. I have never worked with motors. Could you give me please some pieces of advise how to control it? Thank you.
  7. M

    output the CLK on an external mcu pin

    Hi, I use on my project a STM8S207K8 mcu from ST, I configured the internal oscillator, HSI to work at 16Mhz. I use IAR embedded workbench. I want to output the CLK signal on an external CCO pin. Could you help me please how to do it? Since now I haven't work with STM8S mcus. Thank you in advance.
  8. M

    STM8 microcontroller programming help

    Hi, On my next project I have to program a STM8S207K8T6C microcontrollor, it is an 8bit mcu. I have a big problem, since now I have worked only with PICs, and I don't have experience on ST mcus. Could you help me please with some tutorials, application notes, or examples? It would be better to...
  9. M

    water heater using SCR

    Hi, I have to develop a circuit for water heating using SCRs. Since now, I haven't work with thyristors. Could you help me please with some pieces of advice how to proceed with this topic? Thank you.
  10. M

    [SOLVED] problem with displaying message on the LCD

    Hi, I have to implement a serial communication via USART interface between 2 PICs(18F2620 and 18F4550). The transmitter has implemented a card reader application and a LCD. First, it reads the information from the card, and it sends it to the receiver. Depends on this information the receiver...
  11. M

    seven segment display problem

    Hi, I have to implement a thermometer. I use on my project a PIC18F2620, a LM35, and the temperature is displayed on 3 seven segment display. In order to have a stable display, I use the Timer0, and I read the value of temperature at each 1 sec. The problem is the fact that there is nothing...
  12. M

    thermal resistance _ junction to ambient

    Hi, Could you help me please with the formula of calculating the thermal resistance for junction to ambient? I have to do some calculations for power LEDs, and unfortunately the datasheet provides me just the thermal resistance junction to solder point. Thank you in advance.
  13. M

    [SOLVED] LCD PC1602-H contrast problem

    Hi, I use on my project a LCD PC1602-H from PowerTip. I connected Vo to GND, but I can barely see what is displayed on the display. The software works well. I read on forums that the LCD works well with Vo connected to -1.2V. Could you help me please with some ideas of getting this negative...
  14. M

    LCD contrast problem

    Hi, I use on my project the POWETRIP PC1602-H LCD, that has the driver ST7066U. I use the LCD in 4bit mode, and the LCD interface is realized with PIC18F2620. I connected the LCD in the following manner: pin3_VO-->GND pin4_RS-->RA7 pin5_R/W-->GND pin6_E-->RA6 pin15_A-->5V pin16_K-->GND The...
  15. M

    Programming 132x65 LCD, 8080 parallel interface with ST7565V driver

    Hi, Since now, I have worked only with 16x2 LCDs, and now I have to implement a graphic application with a 132x65 LCD, that has the driver ST7565V from Sitronix. I read on forums that for those applications are recommended PIC24, or PIC32, but what I have is PIC18F4550, and PIC18F24J11. Could...
  16. M

    Programming 132x65 LCD with 8080 parallel interface with ST7565V driver

    Hi, Since now, I have worked only with 16x2 LCDs, and now I have to implement a graphic application with a 132x65 LCD, that has the driver ST7565V from Sitronix. I read on forums that for those applications are recommended PIC24, or PIC32, but what I have is PIC18F4550, and PIC18F24J11. Could...
  17. M

    4 bit mode writing problem on LCD

    Hi, I use on my project a PIC18F24J11, and I want to display data on LCD on 4bit mode. I use MPLAB, and the compiler MCC18. RA5-->RS RA6-->EN RC0...RC3--> DB4...DB7 Could you help me please to fix this problem? Below is attached the C code: //Program /* LCD 16x2 4 bit mode RA5--> RS...
  18. M

    [SOLVED] How to interface a barcode reader to PIC microcontroller

    Hi, I use on my project a PIC18F4550, and the input informace is read with a barcode reader MINI HAWK from Microscan, via RS232. I have never done something like this before. Could you give me please some pieces of advice how to interface the barcode reader with my PIC? I'm looking forward to...
  19. M

    read a string from the keyboard and compare it

    Hi, I have to read a string from my keyboard and to compare it if other constant strings, and depends on the result my software programe should do something. The prblem is that my program doesn't work correctly. Below you can see my software parts related to string reading and comparing: //...
  20. M

    ADC complet formula calculation

    Hi, I would like to improve my ADC conversion results. I use a PIC16F616 on my project, and in the datasheet are given the following errors: Integral Error, Differential Error, Offset Error, and Gain Error. Could you tell me please how can I include all of these errors in my ADC formula in...

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