Comments on: DIY Tengu on a breadboard http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/ Alex' blog Tue, 15 May 2012 14:02:06 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Last-Minute Halloween Arduino Skull Prop… | Blackrice Bran http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-2/#comment-291697 Last-Minute Halloween Arduino Skull Prop… | Blackrice Bran Fri, 28 Oct 2011 11:43:55 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-291697 [...] measure ambient sound levels, you’re going to need to hook up a microphone and amplifier like this guy did, or use one of the electret breakout boards from SparkFun (assuming you have one kicking already). [...] [...] measure ambient sound levels, you’re going to need to hook up a microphone and amplifier like this guy did, or use one of the electret breakout boards from SparkFun (assuming you have one kicking already). [...]

]]> By: Real Time Representation Of Visualization Bars | glensaldanha http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-2/#comment-281895 Real Time Representation Of Visualization Bars | glensaldanha Wed, 10 Aug 2011 21:46:52 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-281895 [...] http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/ [...] [...] http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/ [...]

]]> By: Alex http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-2/#comment-97042 Alex Tue, 02 Mar 2010 07:27:07 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-97042 Take a look at the 64pixels for an 8x8 matrix example. http://tinkerlog.com/howto/64pixels/ Take a look at the 64pixels for an 8×8 matrix example.

http://tinkerlog.com/howto/64pixels/

]]> By: apogee http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-97001 apogee Mon, 01 Mar 2010 19:52:51 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-97001 Hello there. I got some 8x8 red matrix lying around. Any hint how i could possibly modify the script to work with 8x8s ? This is so great, i will build for my son in toy. Thank you! Hello there. I got some 8×8 red matrix lying around. Any hint how i could possibly modify the script to work with 8×8s ? This is so great, i will build for my son in toy. Thank you!

]]> By: roboguy http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-93262 roboguy Sat, 02 Jan 2010 18:47:29 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-93262 have you tried making this into a daft punk style helmet? that would be cool. have you tried making this into a daft punk style helmet? that would be cool.

]]> By: 天狗（TENGU）:癒し系USBデバイス» cosacool http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-80380 天狗（TENGU）:癒し系USBデバイス» cosacool Sat, 27 Jun 2009 01:57:31 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-80380 [...] 本々は中国の物怪で、流星または彗星の尾の流れる様子が狗に似ていることから、天の狗、すなわち天狗と呼ばれた。日本において天狗の言葉が初めて見られるのは『日本書紀』で、634年、怪音をたてて空を飛来するもの（かなり地表近くまで落下した流星か）を唐から来た人が、「流星にあらず、これ天狗アマキツネなり」と呼んだという記載がある。奈良～平安時代初期における天狗とは、『山海経』の形状の通り天狐であり、やはり彗星あるいは流星を指したと考えられる。 ここで登場した天狗（TENGU）はまさか伝説中の物怪のようなものです。ＬＥＤドットマトリクスとマイコンで作った表示モジュールにはUSB接続インターフェースが付いている。パソコンのUSBスロットに接続するとＬＥＤドットマトリクスで可愛いキャラクターが表示され、そのキャラクターが周りの音声に反応して動く。USB接続デバイスと言えばUSBハブやキーボード、スピーカなどの「有用」なものばっかりと思うが、今回のＬＥＤドットマトリクス表示機は音声に反応して動く機能以外は何にもない。癒し系USBデバイス＝天狗（TENGU）！ 自分で作って見たいならtinkerlog.comの製作記事を見てください。>>tengutengutengu.comより [...] [...] 本々は中国の物怪で、流星または彗星の尾の流れる様子が狗に似ていることから、天の狗、すなわち天狗と呼ばれた。日本において天狗の言葉が初めて見られるのは『日本書紀』で、634年、怪音をたてて空を飛来するもの（かなり地表近くまで落下した流星か）を唐から来た人が、「流星にあらず、これ天狗アマキツネなり」と呼んだという記載がある。奈良～平安時代初期における天狗とは、『山海経』の形状の通り天狐であり、やはり彗星あるいは流星を指したと考えられる。 ここで登場した天狗（TENGU）はまさか伝説中の物怪のようなものです。ＬＥＤドットマトリクスとマイコンで作った表示モジュールにはUSB接続インターフェースが付いている。パソコンのUSBスロットに接続するとＬＥＤドットマトリクスで可愛いキャラクターが表示され、そのキャラクターが周りの音声に反応して動く。USB接続デバイスと言えばUSBハブやキーボード、スピーカなどの「有用」なものばっかりと思うが、今回のＬＥＤドットマトリクス表示機は音声に反応して動く機能以外は何にもない。癒し系USBデバイス＝天狗（TENGU）！ 自分で作って見たいならtinkerlog.comの製作記事を見てください。>>tengutengutengu.comより [...]

]]> By: Alex http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-76378 Alex Tue, 05 May 2009 12:02:57 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-76378 Hi Brady, if I recall it correctly, I was using the Arduino to test the circuit. With it I was monitoring the values from the amp. And yes, I think you can choose your amplification with the caps. My worked fine with 100nF. BTW, I am an absolute audio noob ;) Cheers, Alex Hi Brady,
if I recall it correctly, I was using the Arduino to test the circuit. With it I was monitoring the values from the amp.
And yes, I think you can choose your amplification with the caps. My worked fine with 100nF.
BTW, I am an absolute audio noob ;)
Cheers,
Alex

]]> By: Brady http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-76367 Brady Tue, 05 May 2009 10:24:32 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-76367 Alex, how do you know the AC offset will be 2.5V, on the audio signal? I see you are assuming this with the hardcoded '512' in "amp = (val >= 512) ? val - 512 : 512 - val;" line also, why the .1uF Cap on the Amp? All the circuits i've see use a polarized 10uF for a 200X Gain or nothing for 20X, are you trying to do a custom gain? The reference circuits use a 1.2K Resistor and a 10uF (unpolarized) Cap. for a 50X gain. thanks so much great work! Alex, how do you know the AC offset will be 2.5V, on the audio signal?

I see you are assuming this with the hardcoded ‘512′ in
“amp = (val >= 512) ? val – 512 : 512 – val;” line

also, why the .1uF Cap on the Amp? All the circuits i’ve see use a polarized 10uF for a 200X Gain or nothing for 20X, are you trying to do a custom gain? The reference circuits use a 1.2K Resistor and a 10uF (unpolarized) Cap. for a 50X gain.

thanks so much great work!

]]> By: Alex http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-38566 Alex Sun, 07 Dec 2008 09:53:52 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-38566 Hi Mookie, I corrected the error above, it should work right now. If you can connect it directly to your audio output, I am not sure. If the output is inbetween 0 and 5V then it may work. Cheers, Alex Hi Mookie,
I corrected the error above, it should work right now.
If you can connect it directly to your audio output, I am not sure. If the output is inbetween 0 and 5V then it may work.
Cheers,
Alex

]]> By: Mookie http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/comment-page-1/#comment-38555 Mookie Sun, 07 Dec 2008 08:53:52 +0000 http://tinkerlog.com/2007/10/22/diy-tengu-on-a-breadboard/#comment-38555 Hi Alex, Cool project! Q1. When i compile the script above i get: In function 'void loop()': error: 'val' was not declared in this scop Q2. Can i connect my computers audio output directly on input pin 2 or do i have to use the opamp circuit? Thanx Hi Alex,
Cool project!

Q1. When i compile the script above i get:
In function ‘void loop()’:
error: ‘val’ was not declared in this scop

Q2. Can i connect my computers audio output directly on input pin 2 or do i have to use the opamp circuit?

Thanx

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