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Analysis of the Tube Screamer
Recent fun-and-games with copies of the Ibanez Tube Screamer guitar overdrive pedal have got me interested in its function to the extent that I've made an analysis of its small-signal frequency...
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Phasers to Stun
Like her ovine eponym before her, Dolly the Tube Screamer has triggered an avalanche of cloning activity. Only a small avalanche. In fact, only one further clone. This time, the object of our sincere...
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Tube Screamer goes digital
Having enjoyed playing about with the "Tube Screamer" guitar overdrive effect, I decided to experiment with a digital version. Purists need not panic - I don't mean anything vulgar like an embodiment...
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Breadboarding Refinements
Those who have idled away their lives reading these ramblings on previous occasions will know that I'm a fan of "Solderless Breaboards". Here's a tale of two little refinements made recently to...
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Digital TS Rocks!
I ended my last post saying "time to get on and USE the new SOIC chip and the swanky new jumpers". I've been true to my word... Here you can see a 1MOhm Analog Devices AD5242 digital potentiometer...
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Keyer on RPi
This Christmas, along with other fine gifts, Santa gave me a Raspberry Pi. In this brief lull in hostilities between Christmas and New year I've stolen a couple of hours to play with my new toy. I have...
View ArticleMorse Code Gmail Notifier
After the fun-and-games with Morse and the Raspberry Pi yesterday, I decided to turn my hand to something a little more subtle - something which couldn't have been done more easily on a PIC!Following...
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MIDIfied Tube Screamer
My Tube Screamer clone (Blogs passim) now sports a MIDI interface and can be controlled externally by MIDI "Control Change" messages... I've played with sending MIDI from PICs a lot - that being the...
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RPi GPIO Breakout for Cheapskates
I told you in an earlier post how much I admire Adafriut's Pi T-Cobbler breakout for the Raspberry Pi. I got as far as finding a UK reseller who listed them (for more GB Pounds than Adafruit charge in...
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MIDI Controller on the RPi
Here's the story of my attempts to squeeze MIDI out of my new RPi. The How To's and Gotcha's concerning configuration, the hardware interface details and the full code examples make it something of a...
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RPi GPIO Breakout for High Rollers
Having described the initial low rent version, I'm pleased to announce the arrival of an upmarket edition of my simple connector... Notice how I've dodged the possibility of inadvertently connecting...
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Rotary Encoders on RPi
I've been playing with an incremental rotary encoder on the Raspberry Pi - for no better reason than the mountaineers' lame excuse "because it's there"... The incremental rotary encoder produces two...
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Multi-mode Beacon on the RPi
Inspired by some comments from Jim on Bill Meara's Soldersmoke Blog, I dusted off the m0xpd PayPal account (again!!!) and splashed out on one of the AD9850 DDS Modules from eBay... Of course, you also...
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Raspberry Whispers
After success with the "human readable" QRSS modes of FSK Morse and (my version of) "Hellschreiber", as seen here received by Steen Erik, la5goa up in arctic Norway,I decided to add WSPR to my RPi...
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What do I know?
Here's the story of a notorious late adopter's first foray into the world of Arduino. As a long-term PIC advocate, I've been generally disinterested in matters Atmel and particularly put off by the...
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KEYERduino
Now I've broken my duck with Arduino, it's time to look at some applications.Having already got the "made a keyer" T-shirt for PIC and Raspberry Pi, the implementation of a Keyer seems to be turning...
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Arduino DDS Shield
Following the fun-and-games I had with the little eBay AD9850 DDS module in Raspberry Pi land, I decided to follow Ron's inspiration even more literally than before and team up the module with an...
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Arduino Beacon
Here's the story of my new multi-mode QRP radio beacon built around the Arduino - or, more properly, around my homebrew clone, the WotduinoTM.I ended the post on my Arduino DDS shield with the words...
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Arduino QRP Transceiver
Meet my new rig - a QRP CW Transceiver for the lower HF bands, built around the Arduino "open-source electronics prototyping platform". Readers have seen in recent posts how I developed a multi-mode...
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Arduino Honeymoon Over
After a long and enjoyable honeymoon period with the Wotduino, in which she could do no wrong, I woke up this morning to see her for what she is - warts and all...The problem was that I had made some...
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