Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
PIC16F... not connected directly to scanner. Connected thru' PIC24FJ... only. Scanner data sent to PIC16F only from PIC24FJ... PIC24FJ takes care of communicatiing with scanner and retrieve data. Why do we use PIC24FJ... is only for USB host to communicate with scanner.
I have contacted the MAXIM for this issue. They told me that they did not check the module for Barcode Scanner. So, asked me to analyze the flow in PIC24FJ.. (used to communicate with scanner thru' USB) and implement / modify the code according to. I read somewhere else on the web that MAX3421E...
Hello All,
I am facing a problem in accessing Barcode Scanner data. I am using PIC24FJ... uC for communicating with USB Barcode Scanner. Everything works fine as expected but with one issue. I am using PIC16F... uC.
PIC16F... (RX PIN) <- PIC24FJ... <- USB Barcode Scanner (ONLY INCOMING DATA...
If MAX sinks the DIG pin, the current should flow and vice-versa. If we add npn transistor, the signal could be inverted. How can we solve this issue? Any suggestion?
Yes. I have tested the code with +5V COMMON CATHODE LED 8 digits(as I already told you that bought from ebay). It works fine. So...
static void Send16bits (unsigned short output)
{
unsigned char i;
for (i=16; i>0; i--)
{
unsigned short mask = 1 << (i - 1); // calculate bitmask
SERCLK = LOW;
// Send one bit on the data pin
if (output & mask)
LED_DATA = HIGH;
else
LED_DATA =...
Dear friends,
MCU : PIC16F1938
LED DISPLAY (BIG SIZED): 6 DIGITS
VDD (LED DISPLAY) = +12V
LED DIGIT SIZE: 3.5" x 5"
DISPLAY: COMMON ANODE ***
POWER SUPPLY:
MAX7219 & PIC MCU = +5V
LED DISPLAY = +12V, 500mA POWER ADAPTER
I have to interface LED DISPLAY (6 Digits) from PIC MCU thru' MAX7219 IC...
Thank you. problem solved. I am using TinyRTC Module which consists of both DS1307 (RTC) and AT24C32N. So do we need to use 8 bit addressing for DS1307 (RTC) and 16 bit addressing for AT24C32N?
thank you.
TinyRTC Module. DS1307 works OK with the same code.
CODE WORKS IN EEPROM AT24C04 THAT NOT WORKS IN AT24C32N. I have changed the Address of the EEPROM only. (A4 for 24C04 - 1010010 & R/W). (A0 for 24C32N - 1010000 & R/W; since all A0, A1, A2 are GNDed). WP pin also grounded.
EEPROM_ADDR =...
You have to resolve this harware issue first to see the result SIM module on terminal. Test the harware connection and see tha Voltages of PL2303, MCU.
IN SIM300 DATASHEET:
The AT command set implemented by SIM300 is a combination of GSM07.05, GSM07.07 and ITU-T recommendation V.25ter and the...
Dear all,
I am interfacing Barcode Scanner (USB) with PIC MCU thru' MAX3421E. I can able to connect and Enumerate the Scanner. But after that, I could not able to receive the barcode value from barcode scanner when reading. Barcode Scanner sounds good-read. It works well with PC (but we have to...
for some reasons, whether it is by virus or some other problem, I could not able to see the Device Manager. It always shows empty. But, the USB views also do the same.
thank you,
speedEC
- - - Updated - - -
Dear friends,
I have uninstalled and reinstall using USBDeview. Now I can able to...
Dear friends,
OS: Windows 7 (32 bit)
Recently I bought USB TO TTL CONVERTER from eBay.in. Silabs CP2102 IC used in the converter. I have downloaded the VCP (Virtual Com Port) driver and also other Windows driver from Silabs and installed in my PC. I could not able to communicate the uC from...
Dear all,
I need C OR C++ OR VC++ OR VB.NET and MS Access and Embedded C Programmers required for my small project. If anyone interested, pl send reply.
1. Operating System: WINDOWS 7
2. MCU:PIC MICRO CONTROLLER
thanks,
pmk
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
