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Archive for the ‘ARM’ Category

Raspberry Pi garage door controller

Friday, August 14th, 2015

As a follow up to yesterday’s Raspberry Pi and ARM uC Breakout + DirtyPCBs mini-review post,  hipfan75 has posted the completed Raspberry Pi-based Garage Door controller project: Right now, all of the sensors and actuators are connected to Raspberry Pi GPIOs. At some point I may move them to the...

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Posted in ARM, DIY, R-Pi | No Comments »

A GUI and CLI utility for EFM32’s UART bootloader

Friday, July 17th, 2015

Mario writes: I've been doing mostly sensor-based systems and I think these microcontrollers are the perfect fit. ARM Cortex (they go from M0 to M4, and their series seem to keep growing), an architecture that was specially designed for low-power sensor-based embedded systems, allowing to measure "stuff" while the CPU...

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Posted in ARM, AVR | 1 Comment »

Tiva C launchpad FFT with real time plotting using pyQtGraph

Wednesday, July 15th, 2015

Shane of Wattnotions writes: The biased signal generator signal is connected to AnalogIn 1 on the Tiva C which is pin PE_2. Signal Gen and Tiva C ground is common. The two 10k resistors from a voltage divider which will halve the 3v input to give a 1.5 v bias......

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Posted in ARM, scripts | Comments Off on Tiva C launchpad FFT with real time plotting using pyQtGraph

tinyK20: New board with micro-SD card

Wednesday, June 17th, 2015

Erich of MCU on Eclipse has posted an update on his open source tinyK20 project. We wrote about it previously: Changes from the earlier version (see “tinyK20 Open Source ARM Debug/Universal Board – First Prototypes“): 1.Replaced the K20 crystal with one having a smaller footprint. 2.Added Micro SD card socket on...

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Posted in ARM | No Comments »

TinyK20 open source ARM debug/universal board

Monday, May 18th, 2015

Erich has posted an update on his open source ARM debug/universal board project. We wrote about it previously: After the proof of concept phase (see “Proof of Concept: Open Source ARM SWD Debug and General Purpose Board“), the first prototypes are ready I had the first prototypes of the board we...

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Posted in ARM, open source | 4 Comments »

mbed LPC1768 board with the XC2C64A CPLD board

Tuesday, April 28th, 2015

@torusle tweeted, "My mbed LPC1768 board is about to do some serious jtag business with the CPLD CoolRunner2 board from @dangerousproto"   Get the CoolRunner-II development board for $15 and XC9572XL dev-board  for $15.

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Posted in ARM, CPLD | 1 Comment »

Proof of concept: Open source ARM SWD debug and general purpose board

Wednesday, April 22nd, 2015

Erich of MCUonEclipse writes: The Freescale FRDM boards are using a Kinetis K20 based circuit (see “OpenSDA on the Freedom KL25Z Board“): However, that firmware is not open: the K20 is secured and protected, so the firmware cannot be changed. Newer Freescale FRDM boards like FRDM-K22F2 and FRDM-K64F do have an...

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Posted in ARM, open source | 1 Comment »

TI releases the MSP432 microcontroller

Wednesday, March 25th, 2015

Introducing MSP432: MSP’s new low-power 32-bit ARM® Cortex®-M4F MCUs TI is announcing an expanded MSP portfolio including a new family of 32‐bit processors built on the ARM Cortex‐M4F core. The first family includes the MSP432P401x MCUs with 48MHz speed, 1MSPS 14‐bit ADC, up to 256KB flash, up to 64B RAM...

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Posted in ARM, MSP430 | 3 Comments »

STM32 ADC

Wednesday, March 18th, 2015

Shawon Shahryiar over at Embedded Lab has written an article discussing the basics of STM32 ADC: The block diagram shown above might look a bit complex at first but it still worth having a look. It shows us the interfaces that are related to the ADC block and some key features. It...

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Posted in ARM | No Comments »

ARM processor hardware debugging

Friday, February 27th, 2015

Abyssal over at Brmlab writes, "This project was originally aimed at debugging Stellaris Launchpad board (ARM Cortex M4F), but can be applied to ARM-related and OpenOCD-supported devices as well. There is also some information on using external hardware JTAG debuggers."

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Posted in ARM | 1 Comment »

PrintSnap instant camera

Thursday, February 12th, 2015

Ch00f wrote a post on his blog detailing his PrintSnap instant camera assembly: So the task was to produce a portable camera that can print images instantly using an optical module and a thermal printer.  Of course, processing a decent image quickly requires far more processing power than what's available...

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Posted in ARM, DIY | 2 Comments »

ARM PRO MINI, an open source ARM M0 microcontroller board

Wednesday, February 4th, 2015

Zapta designed this open source ARM M0 microcontroller board, that is available at Github: ARM PRO MINI is a small barebone open source ARM M0 microcontroller board that is great for quick prototyping and as a starting point for your own ARM based custom designs. It was designed and named...

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Posted in ARM, open source | 2 Comments »

Audible frequency chirp sonar with the Stellaris Launchpad

Wednesday, January 21st, 2015

Jason Bowling writes: Over the last year I've been working towards an underwater sonar system for ROVs and surface boats. In order to learn the basic signal processing required to detect the echoes, I initially got a simple sonar working in air with a desktop conferencing USB speaker/mic running on...

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Posted in ARM, hacks | No Comments »

Atsam3u + SDCard + USB cdc/msd + fat32 with at91lib & Chan’s fat code

Wednesday, December 3rd, 2014

Limpkin writes: This development platform is primarily aimed at facilitating the realization of high speed (several GHz) functions that quantum physicist need for their experiments, as well as providing data collection capabilities. Without going into many details, it will physically be a 3U rack where users can plug different eurocard...

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Posted in ARM, dev boards | 2 Comments »

Freedom freescale KL25Z board

Thursday, September 11th, 2014

Jan Henrik posted another Instructables, an introduction to the Freedom Freescale KL25Z board: Hello, today I want intoduct you to the Freescale Freedom Board with the KL25Z processor. It is a development board, builded and selled by Freescale. It features a ARM® Cortex™-M0+ , working on 48Mhz. Features: 48Mhz 128KB Flash...

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Posted in ARM, dev boards | No Comments »

Electromagnetic Field camp August 29-31, 2014

Sunday, August 17th, 2014

The 2014 Electromagnetic Field camp is set for August 29-31, 2014. This annual gathering will be held in Bletchley, UK, and feature a camping festival with a power grid and high-speed internet access; a temporary village of geeks, crafters, and technology enthusiasts that's lit up by night, and buzzing with...

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Posted in Arduino, ARM, conferences | No Comments »

Implementing an all digital phase-locked loop

Wednesday, August 13th, 2014

Kalle Hyvönen of DGKelectronics writes: I’m currently building an induction heater. I’ve already built one controller based on an analog PLL so this time I decided to go all digital and use an ARM Cortex-M4 microcontroller (STM32F303). For this I needed to implement a digital phase-locked loop running on the...

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Posted in ARM | 1 Comment »

An open letter to NXP Semiconductors about LPC1114FN28

Friday, July 25th, 2014

ytsuboi  wrote an open letter to CEO of NXP, and get replied: I sent this e-mail to the CEO of NXP Semiconductors. (23 July 2014, 4:36am JST) To: NXP Semiconductors N.V‎ Richard L. Clemmer, Executive Director, President and CEO Dear Mr. Clemmer, About a week ago, I found an unbelievable information about...

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Posted in ARM | 3 Comments »

SX1278/SX1276 (RFM98W/RFM96W) LORA module

Thursday, July 17th, 2014

x893 writes: Simple LORA RF module with RF96W/RF98W (HopeRF) and STM32L151CB. Configuration via soldering jumpers for USB, standalone or Raspberry PI. Software from LoRaMac-node

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Posted in ARM | 3 Comments »

LemcUSB: software USB for EFM32ZG (ARM Cortex M0+)

Monday, March 24th, 2014

Viswa informs us that the Lemcu.org crew have implemented a purely software based USB peripheral for ARM Cortex M0+ devices and a made a tiny Quick start board for EFM32ZG110 MCU. "This software enables Cortex M0+ devices to act as a Low speed USB device. It includes a lightweight USB...

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Posted in ARM, dev boards, open source, USB | No Comments »

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Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please