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Contents SILICON CHIP www.siliconchip.com.au Vol.25, No.6; June 2012 Features 12 New Microcontrollers: Feature-Laden, Fast & Furious The microcontroller scene is on the boil, with a host of impressive products now available. Here’s a brief look at what’s new – by Nicholas Vinen 20 WiNRADiO Excalibur WR-G31DDC HF Receiver “Excalibur” is the name for the latest software-controlled HF receiver from WiNRADiO. Like its namesake, it’s almost magical – by Maurie Findlay 82 Review: Agilent’s 35670A Dynamic Signal Analyser Crazy Cricket Or Freaky Frog – Page 26. 26. An oldie but a goodie, Agilent’s 35670A is virtually the industry standard for sound and vibration engineers – by Allan Linton-Smith Pro jects To Build 26 Crazy Cricket Or Freaky Frog Like the sound of crickets and frogs? You will probably revise your opinion after exposure to Crazy or Freaky, a very pesky cricket and an equally annoying frog – by John Clarke 32 Wideband Oxygen Sensor Controller Mk.2, Pt.1 Involved in car engine modifications? If so, you need to fit a wideband oxygen sensor and build this improved Wideband Oxygen Sensor Controller to check that your engine is not running too lean or too rich – by John Clarke 58 Mix-It: An Easy-To Build 4-Channel Mixer Want to mix two or more audio signals together? This 4-channel mixer might be simple to build but its performance lacks for nothing! – by Nicholas Vinen Wideband Oxygen Sensor Controller Mk.2, Pt.1 – Page 32. 74 PIC/AVR Programming Adaptor Board; Pt.2 Our new programming adaptor board works in conjunction with an ICSP to program most 8/16-bit PIC and 8-bit Atmel AVR microcontrollers. This month, we describe the construction and show you how to use it – by Nicholas Vinen Special Columns 44 Serviceman’s Log Off on yet another wild goose chase – by the Serviceman 68 Circuit Notebook Mix-It: An Easy-To-Build 4-Channel Mixer – Page 58. (1) Tank Water Level Circuit With Hysteresis; (2) Really Simple Garage Door Monitor; (3) 433MHz Remote Lamp Switching; (4) Optical Tachometer Uses Photo-Interruptor; (5) Accurate Clock Uses Maximite & Garmin GPS Module; (6) Engine Hours Counter 90 Vintage Radio John de Hass & his Philips vintage radio collection – by Rodney Champness Departments   2   4 57 97 Publisher’s Letter Mailbag Product Showcase Order Form siliconchip.com.au 98 Ask Silicon Chip 103 Market Centre 104 Notes & Errata PIC/AVR Programming Adaptor Board, Pt.2 – Page 74. June 2012  1