This mini project shows how to connect the Sparkfun Compass Module (SKU SEN-07915) to both the Arduino Uno and the Arduino Mega 2560. As these two Arduino boards are 5V devices, and the Compass Module is a 3.3V module, the I2C bus must be translated. This is done using the Logic Level Converter from Sparkfun […]
If your using a different linker file than what comes with the compiler you will need to set the /p option for the linker to specify your processor manually. For some reason v3.38 doesn’t pick this up automatically. If this is not done, the following error message will probably be recieved: Error – Device not […]
Had the need to create some strings in the form of an array of hex codes for the charachters the other day which was a little cumbersom, so put together some quick php code to do it for me. So thought I’d share it with you. You can access it at http://electronics.trev.id.au/str2hex.php. Just enter your […]
Last Tuesday (27 Jul 2010) I attended a meeting at the South Australian PIC User Group (SAPUG) which was excellent. A great bunch of people that are all keen to help. Ian from The Leon Audio Company gave a talk on how to use MOSFET’s with a PIC and some things to watch out for. […]
Hi again. Onto the next example, this time on page 295 (figure 8.28). The code for this one is called ‘ledtoggle_nofsm’ and it’s in the chap8 folder. Now that we’ve defined EXPLORER16_100P in the pic24_all.h file, here is a new checklist to use: Double click on the project file for the exercise your wanting to […]
I enjoyed this example as it’s interfacing between the user and the MCU via a computer. It also showed some interesting concepts on power management within source code. I did notice this time I needed to use a different approach to telling the compiler I’m using the Explorer16. For some reason, it would not maintain […]
The UART example on page 262 just needs the Explorer16 check list from the last article to make it work and the ASM example I skipped as it’s not needed at this stage of my journey. The file name for the Figure 8.6 example is documented in the book. Well done to the author and […]
Continuing with Chapter 8, the next file is the one referred to in Figure 8:5 Improved code example for flashing LED. It takes the previous one and modifies it using macro’s. Well we sort of used macros in the last one to break out the Explorer 16 version and the original. This file is called […]
Well I’m going to run with the PIC24 for the time being and use the Microcontrollers – From Assembly Language to C Using the PIC24 Family book, but jumping to chapter 8 as the assembly language is not what I want at the moment. It’s learning about C and the PIC24. Anyway, as I’m using […]
I’m on a journey of learning and need to make a decision on which way I go first. When I ordered my Explorer16 board, I also ordered the PIC32MX460F512L PIM, a 32-bit USB capable 100pin chip for the Explorer 16. I also ordered a couple of books from Amazon but they look to be still […]