Archive for 'hardware'

Brother LW-35 Typewriter Modernization Vlog 4

Markus | Sunday, May 20th 2018, 00:00

-- Part 4: Printer

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This part of the Brother LW-35 modernization series describes the progress on the re-implementation of the printer controller on an AVR.

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Tags: hardware software video


Brother LW-35 Typewriter Modernization Vlog 3

Markus | Sunday, May 13th 2018, 00:00

-- Part 3: Printer preparation

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In this video, I take a look at the original circuit used to drive the printer assembly.

Tags: hardware video


Brother LW-35 Typewriter Modernization Vlog 2

Markus | Sunday, May 6th 2018, 00:00

-- Part 2: Keyboard

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This video shows how I read the keyboard of the Brother LW-35 typewriter using an AVR microcontroller.

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Tags: hardware software video


Brother LW-35 Typewriter Modernization Vlog 1

Markus | Sunday, April 29th 2018, 17:11

-- Part 1: LCD

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In the first video of this series, I show how I got the LCD of the Brother LW-35 Typewriter working with an Orange Pi PC Linux SBC.

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Tags: hardware linux software video


USB VFD (HCS-12SS59T)

Markus | Updated Saturday, March 24th 2018, 18:05

-- A basic general purpose USB enabled display

Figure 1. The USB VFD board

When ordering at Pollin Electronic, there is this unwritten rule of at least throwing in one probably useless item, one that you might never even get to work (or that is broken in the first place). In my last order, this was a Samsung HCS-12SS59T vacuum fluorescent display[1]. I absolutely love this kind of display and they were cheap at only EUR 1.75 a piece. So why not?

In this post, I will showcase the project that this display became.

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Tags: avr hardware video


Lattice MachXO2 Based FPGA Development Board

Markus | Updated Monday, November 27th 2017, 18:37

-- Tiny and cheap, but versatile

Figure 1. A rendered 3D-image of the Tiny-XO2 board

Introduction

The Tiny-XO2 is a small, versatile and cost-effective development platform for Lattice MachXO2 field-programmable gate arrays (FPGAs). It is built around a MachXO2-1200HC FPGA which features 1280 LUTs, 64 kbits of EBR SRAM and one PLL besides various other features[1]. The development board extends the functionality by providing a USB-to-serial converter and a crystal to allow quick and easy prototyping. All I/O pins are available on the .1 inch headers and labelled directly on the board. Figure 2 provides an overview of all the board's functions.

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Tags: fpga hardware


DIY power amplifier

Markus | Thursday, December 10th 2015, 15:55

In one of my older videos, I tested an audio power amplifier circuit by Douglas Self [1] on a breadboard.

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After that evaluation showed how great the design really is, I decided to create a real PCB design for it so I can actually use this as one of my daily use amps.

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Tags: audio hardware