In response to a viewer request Ellsworth designs a circuit for generating music, sound effects and motion control for an art installation. It uses the unique properties of the passive infrared sensor to detect motion and direction of people in the room. For more information visit http://www.element-14.com/community/groups/jeri-ellsworth
Used in the project:
Passive Infrared Sensor (PIR)
TI LaunchPad MSP430
Opamps
Gear reduced motors
MIDI Devices
Bruafsir 1:49-49:1 Balun for Short Wave Four Band 5-35MHZ End Fed Half-Wave EFHW Antenna 100W HAM
$28.41 (as of March 23, 2023 12:33 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Product Name: End-feed antenna 49:1 balun This is a 49:1 balun for -feeding antenna. Suitable for HAM with certain hands-on . Condition: brand new and high Frequency: 5-35MHZ
SIGRID 1:49-49:1 Balun for Short Wave Four Band 5-35MHZ End Fed Half-Wave EFHW Antenna 100W
$23.32 (as of March 23, 2023 13:24 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Suitable for with certain hands-on . Condition: brand new and high quality This is a 49:1 balun for -feeding antenna. Product Name: End-feed antenna 49:1 balun Frequency: 5-35MHZ
MEIFA 1:49-49:1 Balun for HF Short Wave Four Band 5-35MHZ End Fed Half-Wave EFHW Antenna 100W
$21.92 (as of March 23, 2023 14:12 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)This is a 49:1 balun for -feeding antenna. Condition: brand new and high Suitable for with certain hands-on . Product Name: End-feed antenna 49:1 balun Frequency: 5-35MHZ
Portable No Tune End Fed Half Wave Antenna Assembly
$19.99 (as of March 23, 2023 12:30 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)The single-band 80m-10m end-feed half-wave linear antenna provides the antenna. It is designed as a highly portable wired antenna that can be easily set as an inverted V-shaped, horizontal, tilted, or vertical radiator (at higher frequencies). Your f... read more
![[ATU-10 Version] Latest program：1.5 version has been burned. [Product Features]Machine with Shell（with battery）,No need to assemble,can use it directly. Developed by N7DDC. equipped with a 0.91 inch OLED screen [High-quality Accessories] high-quality...](https://m.media-amazon.com/images/I/41cFBuB4peL._SL160_.jpg)
ATU-100 Tyny Version ATU-10 QRP Automatic Antenna Tuner 1.5 Version by N7DDC
$126.00 (as of March 23, 2023 12:37 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)[ATU-10 Version] Latest program：1.5 version has been burned. [Product Features]Machine with Shell（with battery）,No need to assemble,can use it directly. Developed by N7DDC. equipped with a 0.91 inch OLED screen [High-quality Accessories] high-quality... read more
NOCO GENIUS10, 10A Smart Car Battery Charger, 6V and 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for AGM, Motorcycle, Lithium and Deep Cycle Batteries
$99.95 (as of March 23, 2023 19:32 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Meet the GENIUS10 - Similar to our G7200, just better. It's 17% smaller and delivers over 115% more power. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.... read more
Ham Radio Handheld BaoFeng Radio UV-5R 8W High Power Dual Band 2-Way Radio Rechargeable with Extra AR-805S Antenna AR-771 Antenna USB Charging Cable Programming Cable Full Kits
$59.97 (as of March 23, 2023 01:00 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【Professional Baofeng UV-5R&FCC Certified】High / medium / low power TX selectable,Outpower:8Watts;Dual band / Dual display / Dual standby,128 groups of storage channels,Compatible with other handheld walkie-talkies from Baofeng, such as BF-F8HP, UV-8... read more
Mimorou 30 Pairs Walkie Talkie Earpiece with Mic 2 Pin Two Way Radio Ear Piece with Microphone Bulk Single Wire Earhook Headset Compatible with Baofeng UV-5R BF-888S Arcshell Retevis H-777 RT21 RT22
$36.99 (as of March 23, 2023 01:33 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)What Will Get: the package comes with 30 pairs of walkie talkie earpieces with microphone, single wire C type earpiece with reinforced cable, 2 pin plug; Work well with most two way radios C Type Earhook: the walkie talkie headset is easy to wear, th... read more
BaoFeng, BTECH BL-5L 3800mAh Li-ion Battery Pack, High Capacity Extended Battery for UV-5X3, BF-F8HP, and UV-5R Radios (BL-5 BaoFeng Battery Series)
$19.95 (as of March 23, 2023 14:03 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Genuine OEM BTECH (BaoFeng) BL-5L (BL-5 Series Li-ion Battery). Genuine batteries include battery protections that protect your battery from over-charging, over-heating, short circuiting, and more. The BL-5L is a great tactical addition for your ham ... read more
Cobra 19 Mini Recreational CB Radio - Easy to Operate Emergency Radio, Travel Essentials, Instant Channel 9, 4 Watt Output, Full 40 Channels, Time Out Timer, VOX, Auto Squelch, Auto Power, Black
5% OffUltra Compact Design – A full-featured CB radio for recreational or professional use that easily fits in the palm of your hand. Whether you are off-roading or going on a road trip the 19 MINI will be there to assist you when being left on your own Cl... read more
Kathfly 30 Pack Walkie Talkie Earpiece with Mic G Shape 2 Pin Headset Earpiece Two Way Radio Earpiece with Microphone Compatible with Baofeng UV-5R BF-888S Retevis H-777 RT21 RT22 PUXING HYT
13% OffRich Pack: you will receive 30 pack quality radio earpiece with mic, so much that can meet the needs of most people or teams, work well with most two way radios, suitable for people who work in noisy environments, such as factories, bars, etc., also ... read more
JEUJUG Radio Portable AM FM Radio Vintage/Retro, Bluetooth5.1 Speaker Built-in Rechargeable Battery, Plug in Wall Or D Battery Operated Radio PU Leather Handle with Aux in/Headphone Jack
$29.99 (as of March 23, 2023 13:24 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【Radios Portable AM/FM Easy to Use】: In order to allow users to get hold of this radio faster,JEUJUG combined all the functions on three knobs. Just turn the knob to turn on and off, volume adjustment, channel change,FM,AM,Bluetooth mode selection. M... read more
Redeo 4 Pack AR28S Ultrasonic Pest Repeller Device Portable - Battery Powered Rodent Repellent Device Control Rat Squirrel Out of Car Underhood Garage Attic with Strobing Light (Built-in Battery)
$55.99 (as of March 23, 2023 19:33 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Powerful Vehicle-Mounted Mouse Repeller: This vehicle-mounted mouse repeller sends out ever-changing ultrasonic waves and LED strobe lights to keep all mice and other rodents away. Under working conditions, the ultrasonic frequency will change betwee... read more