كل الرسائل

سؤال: FCC AMature radio operators license required for transmission in the US and it's possession s

السؤال بواسطة buzzy على 2020-11-15 06:10:59

BG174585419 This answer is incorrect. An Amateur Radio license is required to use certain frequencies or bands set aside for license holders and the FM radio band is NOT one of the bands. Per the FCC website: "Unlicensed operation on the AM and FM radio broadcast bands is permitted for some extremely low powered devices covered under Part 15 of the FCC's rules. On FM frequencies, these devices are limited to an effective service range of approximately 200 feet (61 meters)" That equates to very low power! Most likely about one tenth of a watt or less! If you break these rules it is a $10,000 fine!

2023-04-25 12:16:20 مساعدة (1)
عرض
أجابات (2)

سؤال: How is the flow rate presented ? Will it interface with a meter of some kind ?

السؤال بواسطة buzzy على 2019-06-12 06:42:07

wdebelg You will only get high or low pulses. These should be counted. I use an Arduino with interrupt routine. (every time the flowmeter creates a pulse, a software counter is activated) If you have no knowledge about Arduino (or any other microcontroler), I don't think this is something you can use.

2020-09-02 02:10:21 مساعدة (0)
عرض
أجابات (1)

Rui Press a few seconds until the number starts to flash, then use the up or down arrow button. Use the same method for the minimum and maximum temperature of each probe. Out lights up when the temperature recorded by the probe is far beyond the set point, but I'm not sure.

2020-02-01 07:07:06 مساعدة (1)
عرض
أجابات (2)

سؤال: Will this work in fuel tank ? Gas and diesel ?

السؤال بواسطة buzzy على 2019-07-12 09:12:26

ve7dvb Itisn't intrinsically safe so not advised to use with combustible fluids.

2019-12-31 02:15:07 مساعدة (0)
عرض
أجابات (1)

سؤال: do you have a sender for this item. That is, the sending device that goes into the tank.

السؤال بواسطة buzzy على 2019-08-30 11:54:05

CrazyCrow Works with any float unit that has a 2 wire connection.

2019-08-30 03:59:44 مساعدة (0)
عرض
أجابات (1)

Talismanwas This is a non-direct output, vcc is the working positive, GND is the working negative, K0 and K1 are the control terminals, also need to be connected to the power supply, the relay is disconnected without power

2019-06-28 03:05:25 مساعدة (0)
عرض
أجابات (1)

سؤال: What is the Current draw at 6 volts ?

السؤال بواسطة buzzy على 2018-08-15 02:20:41

Thrilled Voltage Range: 4.8V-7.4V RPM: 22000-46000

2018-08-16 06:15:51 مساعدة (0)
عرض
أجابات (1)

سؤال: What is the Output RPM ? That is, the RPM of the output shaft ?

السؤال بواسطة buzzy على 2018-08-15 02:16:43

Mrmartinc Voltage Range: 4.8V-7.4V RPM: 22000-46000

2018-08-16 06:15:22 مساعدة (0)
عرض
أجابات (1)