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Links: Amazon, datasheet, short instructions
Cost: 6 x approx. 2€ ≈ 12€
Power Supply: +5VDV, 15mA working current
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Minimum sensor recognition distance:> Sensor’s minimum-distance does not have to be much smaller than 20cm (8“). Infrared:
Pro: - Quality products comparatively cheap - In some cases very high resolution (up to 1 mm) Contra: - Problems with sun light - Problems with recognition of dark or black objects - Small range sizes
Recommendation after some research: Sharp GP2Y 0A02 (ca. $11, 20cm – 150cm Range, Analogue Output) http://acroname.com/products/SHARP-GP2Y0A02YK0F-IR-PACKAGE (see also: http://acroname.com/articles/sharp-infrared-ranger-comparison for comparison)
UltrasonicPro: - Not depending on optical properties of an object -> more reliable in common usage - Larger range sizes Contra: - Usually higher prize - Lower resolution (2-3 cm) - Problems detecting acoustic quieting objects
Recommendation after some research: Parallax PING Ultrasonic Sensor (ca. $29, 2cm – 300cm Range) https://www.parallax.com/product/28015 (maybe cheap replacement: http://www.dx.com/p/hc-sr04-ultrasonic-sensor-distance-measuring-module-133696?Utm_rid=37202148&Utm_source=affiliate#.VTsyqa3tmko) |
Radio Telemetry Kit
Aukru HC-06 Wireless 4 Pins Bluetooth RF Transceiver Serial Module
Links: Amazon, instructions, instructions, instructions
Cost: 9€
Power Supply: 3.3V - 6V, approx. 50mA
Pins: 2 GPIO, VCC, GND
- VCC = +3.3VDC / +5VDC (GPIO)
- TXD = Trigger input of Sensor (RXD Digital 0)
- RXD = Echo output of Sensor (TXD Digital 1)
- GND = GND (GPIO)
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FPV 433Mhz Radio Telemetry Kit 100mW V1.1:http://www.hobbyking.com/hobbyking/store/__42847__FPV_433Mhz_Radio_Telemetry_Kit_100mW_V1_1.html |
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