Gareth's blog

Quartus II web version 15.0 - Intels FPGA Programming Suite

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Quick Schematic Guide to programming FPGA's using Intels Quartus II programming Suite.

Goals :-


Logisim - Logic Simulator (inc. FPGA compile)

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Just a Quick "Periscopes Up" for anyone looking for a Free Logic Simulator - Quick bash up above as taster.

GitHub https://github.com/reds-heig/logisim-evolution/releases


Hacking Servo's for Positional data...

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Ever wanted to know the positions of your Servos before you attach them from Cold Boot Reset.

This Quick Hack gives a good positional check of your Servo's , meaning that you can the "Ease" your Servos from a random position to Start position.... without the "Warp at Max speed" - saving your nerves and Plastic bits and gears... (falling in line with Asimov’s Three Robotic Laws of preservation).


Retrofitting InMoov with Interactive Eyes..... aka >reducing the servo count.

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I Picked up a couple of round 240*240 pixel OLED display modules, as luck would have it they scale easily into the InMoov face frame-work.

Driving the display is an ESP32 using SPI bus for control... meaning that two displays can be controlled with it.


STM32F103 C8T6 PWM Timer and NE555 redundancy Part 002

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Latest iteration of the Neon supply 170 - 240 Volt generator.

The original circuit sported a "NE555" to drive the "Fly-Back" inductor N-Channel MOSFET, then after a hour sitting in its cosy socket (and an elvish brainwave later) it has been made redundant in preference to some"PWM Code..."


STM32F103 C8T6 3.3V meets 170Volt Neons. ... Part 001

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Over the last few months these "Coloured Neon lamp indicators" have been popping up on the matrix, so I could not resit...well who could not resist mixing 3.3volt logic with 170volt.

They come in a variety of colours "Green","Blue" and "Orange" , the glow intensity is good even in daylight.


Taking the "Blue-Pill" aka STM32F103 C8T6 ... Part 000

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The MCU you see above is know as the "Blue-Pill" , it belongs to the STM32 family.

To put it in simple terms.... its a bit like an Arduino on steroids.

STM32F103 Specs :-


nRF52840 Nordic Semiconductor (Part 003) Flash Memory Migration from nRF52832

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There are two common nRF "Mini" development boards available namely :-


nRF52840 Nordic Semiconductor (Part 002) - GPIO Inputs

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Based off the Bog standard "Blinky "Example contained in the NRF SDK :- C:\nRF5_SDK_17.0.2_d674dde\examples\peripheral\blinky\pca10059\mbr\ses\blinky_pca10059_mbr.emProject


nRF52840 Nordic Semiconductor (Part 001) - GPIO Outputs

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Based off the Bog standard "Blinky "Example contained in the NRF SDK :- C:\nRF5_SDK_17.0.2_d674dde\examples\peripheral\blinky\pca10059\mbr\ses\blinky_pca10059_mbr.emProject