arhi posted an update on his HAKKO soldering pencil driver: The driver actually works like a charm – if you take the “numbers” on display as some “arbitrary value” and not temperature in C :D. The tip temperature is held pretty good and it all works great, it’s just that “values” are meaningless. The 500C […]
Category Archives: project logs
DIY rover hacking
hak8or posted his Rover hack in the project log forum: I am working on making a rover thing so I can finally have a mobile car that I can use for things such as just driving around, scaring my cat, and learn some things about mobile electronics such as battery power, power usage, motor drivers, […]
Power supply using a 1U rack chassis
hak8or posted pictures of a power supply build using a 1U rack chassis: I saw a post about using magnetic fields on the human brain to get certain reactions, and the first thing that popped to my head was trying it out myself. …I finally came to the conclusion that I should make a proper […]
Replacing RIGOL DS1052E DSO rotary encoders
Markus did a repair on his scope: yesterday I decided that it was about time to replace the bad performing rotary encoder for the time-base of my RIGOL DS1052E DSO. The encoder seemed to work fine when I bought the scope, but after a few weeks it already started to change the time-base quite randomly […]
DIY POV keychain
exapod posted a mini POV in the project log forum: i’m making a micropov with 8 leds, 3v power supply and tilt swicth for sensing the direction. i made a prototype version of it on protoboard and the it works very well, the image is very stable and can see with naked eye. Check out […]
Chronoduino expandable Arduino watch update
orcinus posted an update on his Chronoduino expandable Arduino watch. Via the project log forum.
SID player VHDL core
d18c7db was inspired by Markus’ SID audio file player so he implemented a SID player in VHDL: I spent some time this weekend and got some initial sounds out of my board. I’m using a Papilio FPGA board with a SID core written in VHDL. The sounds coming out sound 90% correct, the tunes are […]
USB adapter for Wii Classic game pad
frank26080115 made a USB adapter for a USB Wii Classic Controller: This project will show you how to create a real USB game pad using a Wii Classic Controller. The Instructable (full step by step instructions) is here Once the adapter is working, the Wii Classic Controller registers as a standard HID gamepad on any […]
tiltOne a (big) balancing robot
tinito build a large two-wheel balancing robot: tiltOne is a two-wheel balancing robot 90cm tall and able to carry up to 50kg of payload. There are lot of small balancing robots around, but size matters, especially when speaking of balancing a unstable system. Most of small robots “shake” around the vertical, with 5-10 degree oscillation, […]
CUI32Stem dev-board prototype
The CUI32 is a PIC32 USB development board. Markus updated the design to use as an Commodore sound chip emulator and SID music file player. Now that re-design has become the CUI32Stem, and it will soon be available at Seeed: SeeedStudio is currently producing a prototype of the board and if everything goes well, they […]
Chronoduino an expandable Arduino watch
orcinus posted pictures of the Chronoduino expandable Arduino watch in the project log forum: So i’ve set out to design the ultimate Arduino watch platform that’s also usable as an ultra-miniature sensor node and dubbed it (quite unimaginatively) – Chronoduino. Some parts are based off of Bazile Romaine’s rev 3 MakerBot Watch, some are completely […]
Hybrid SID player update
Markus has updated his hybrid SID player again. The new version has the classic stand-alone mode, with a new networked mode that pulls SID auto from a PC: Beside the disadvantage of not being stand-alone, the ‘Network SID Device’ mode has several benefits: Newer tunes containing samples are only released in RSID format which the […]
Step by step heat sink analysis
Schazamp does a step by step heat sink analysis for the Schazamplifier: I’d like to understand thermal design enough to figure out what kind of heat sink this device requires and determine with some level of confidence whether a particular enclosure design will function to dissipate heat adequately for the amplifier. Feedback is appreciated. Via […]
RC quadrotor helicopter
Frank shared his RC Quadrotor Helicopter in the project log forum.
Schamplifier mini chip amp
schazamp shared the Schamplifier: I am working on my own version of the Squelette mini chip amp, as presented in Make Magazine #23. My ambitions for this project are relatively unbounded, but knowing the trouble I have with follow-through, I am trying to start small and get a working stereo amp with a single input […]
HAKKO soldering pencil driver
arhi made a control board for HAKKO soldering pencils. Add a power supply, probably from an old PC, and you have a quality DIY soldering station. From the project log forum: Upgrades from v1 1. thermocouple is read properly. The circuit used to get the K-type to go 0-5V came from microchip’s app note 2. […]
RS-422 networked infrared transmitters
Gridstop posted pictures of his networked infrared transmitters in the project log forum.
RS-485 network temperature sensor
ezflyer made a RS-485 network temperature sensor: This design will be used as part of my home automation system to measure temperatures in various parts of the house. I already have the wiring in place for an extensive RS-485 network, so the installation of the individual sensors will be easy. I’m currently working on a […]
WIFI web platform design review
As promised in the review of the Sure WiFi board , a new WIFI web platform/server design is up for review in the forum. The purpose of this board is to control a digital DSLR camera through a webpage. The device is connected by a 802.11b network, allowing lots of freedom (when in range of […]
Another SID player update
Another SID player update from Markus: I added digi-support and a follow-up video demonstrating digi playback is available here Two things to keep in mind: The emulator code (TinySID) can only playback tunes in PSID format (in which the majority of the files in the HVSC are). However, with update #50 the digi-tunes in the […]