Need suggestions for a micro-controller that can read an I.R sensor and...
First time poster here so go easy! I'm a 4th year Computer Engineering student and my group and I are making an IOT smart car parking system. Part of that system will be units that are capable of of...
View ArticleRemote control by location (PIC in Oshonsoft)
I'm making a couple of PCBs BASE/TRANSMITTER and REMOTE/MODEL RECEIVER using surface mount components, and PICs, for use as remote control by location (3D). Remote control by location, is when a...
View ArticleLogisim: Experiencing problems with my 16-bit CPU designed in Logisim
Hi, I recently got into designing logic circuits in Logisim. I tried to make a 16-bit CPU which can perform floating point operations (up to two decimal places). It also has a ROM with the microcode on...
View ArticleProper operation of a device
So I am not an EE and I was hoping to get a more experienced opinion from someone who has dealt with embedded systems before. There is a diagram in the datasheet for how this audio codec should be...
View ArticlePQFP or LQFP MCU Test Clip
A prototype SBC design has two 100 pin LQFP TI MCU's soldered directly to the PCB. Any suggestions on a test clip to attach to them? I have found some at QFPTestClips but they are extremely expensive....
View ArticleDSO oscilloscope with STM32
Hi, I have compiled a source code for DSO oscilloscope with STM32f4 discovery board. and i used a 7inch color lcd with 50 pin interface via a ssd1963 driver board. The source code is from this...
View ArticleInterfacing PS2 Wireless Controller With a PIC Microcontroller
I've posted this thread because I recently completed a robotics project that used the Wireless PS2 Controller with a PIC Microcontroller. When I looked online, I found it surprisingly difficult to find...
View ArticleRead a specific string from data on a line
My terminology may be incorrect so I hope I explain this enough for someone to help. I would like to monitor the Rx of a RS232 data line which will be having data sent on it once a second. I would like...
View ArticleThe MPHASE box
A fairly simple serial command response controller using the PIC18F45k80, max232 RS-232 converter and mainly leftover previous project parts for a automatic digital servo amplifier programmer....
View ArticleWritting an array into SD card using fatfs( sdio)
Hi, I am trying to write an array of size for example uint16_t array[10000] into sd card using fatfs library using the following syntax: f_write(&myFILE, array, sizeof(array), &testByte); when...
View ArticleQuestion on the feasibility of this project
I have designed a DC motor controller board for a treadmill application using PWM. Actually it's for a college project. So far, the hardware works okay in open loop. I mean, I can control the duty...
View ArticleSynchronization of two Arduino countdown LED timers
First some background. I am working on a project for my water polo club where I am making a time system. This consists of two shot clocks (30s countdown timers that can be paused and reset at eill) and...
View ArticleDo i need PC/MCU/PLC in project
I'm planning to design automatic system to read bar-code number, consider there are the bunch of cartoon moving one by one on convener belt n factory, so I need camera to scan bar-code one by one. I...
View ArticlePROTEUS showing Stack overflow error
I wanted to generate a delay of 1ms by using PIC18F2550 Timer0 Interrupt Service Routine using MIKROC for pic when i tried to simulate this in PROTEUS, i got some errors [PIC18 STACK] PC=0x0038. Stack...
View ArticlePic18F47J13 external interrrupt?
I have the following coming from my Hall Effect sensor. View attachment 162661 When the sensor trips the output goes from rail to zero volts. Do I need to invert the signal before sending it to the...
View ArticleCannot send data to 16x2 LCD via PIC18F45k22 Micro Controller (display...
Hello, My 16x2 LCD displays black boxes when I hook it up according to the attached wiring diagram. I am using a PIC18F45k22 development board by Mikroelectronika and using their MikroC pro for PIC...
View Articlemidi keyboard interfacing with arduino pressing keys/turning knobs causes...
Ok, I have a midi keyboard connected to my arduino, and I'm using the arduino midi library to read the keyboard and generate a certain frequency square wave signal based on the key being pressed. The...
View ArticlePIC18F47J13 Capture Mode?
I have never used capture mode before. I thought this was a way to capture the time difference between two events. But the datasheet says: Capture Mode In Capture mode, the CCPR4H:CCPR4L register pair...
View Article8 sensors to one external interupt with count on a pic?
Imagine 8 Hall Effect sensors in each one of the slots below. There will be a disk spinning above the slots. The disk contains the magnet. I need to know when each one is tripped but I don't want to...
View ArticleNand flash read isuue
Hi, I have a custom made board based on Atmel SAME70Q20 microcontroller. I am having trouble figuring out a strange bug related to external Flash. I have integrated ELM Chan's FATFS in the code and...
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