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I want to have a permanent "casing" or mounting point for the Arduino uno but unlike the arduino Nano, i can't just solder on the pins to a PCB...
i see a couple screw holes on the edges but what can it be screwed into?
i suppose the wires can be plugged into the top of the uno like normal...
as of right now i am using the default software.serial library used for the arduino connected directly to the Tx
(i believe this is called something like an UART)
Now I am at the point where i can send a digital signal at 4800 baud through these sensors.
The thing is, If it send "123" on the other side, i rarely ever get the "495051" sequence (refer to ASCII table)
there is no encoding for this signal and i am not quite sure how to "encode" it either...
okay so i finally figured out to find a digital signal to send through these. there is another problem that comes up:
1. the signal being sent to the transmitter is 9600 baud which is 2x the 4800baud for the tx/rx (which i do not know if it affects the signal any)
2. when i view the signal, it...
i got a MAX3232 from sparkfun and it is SMD
here is the datasheet:
https://www.sparkfun.com/datasheets/Components/ICL3232.pdf
the product page said that i needed 4 external 0.1 µF capacitors so i got those as well
the question is, i do not know which pins to connect them to
according to the...
thanks wasnt quite sure how to read the graph at first lol but for me i think my voltage dropout would be around 1v if not 0.5v-0.8v because of low current draw
What is the dropout voltage for a LM2596 DC to DC buck converter?
for 5v 7805 voltage regulators i know that the output voltage drops around 6-7v depending on the regulator
but what about buck converters? does it work in the same way? does it even have a "dropout voltage?"
thanks!
wait you have to invert it, then the max232 inverts it again? sorry im just really confused
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wait you have to invert it, then the max232 inverts it again? sorry im just really confused
I have a Maxbotix MB1030 ultrasonic sensor, in which it gives out a "Tx" digital signal which is:
When the *BW is open or held low, the TX output delivers
asynchronous serial with an RS232 format, except voltages are 0-Vcc.
The output is an ASCII capital “R”, followed by three ASCII character...
I want to use the Maxbotix MB1030 ultrasonic sensor and i want to design a housing for it.
the problem is, i dont know what type of material ultrasonic waves can pass through while still protecting the sensor from water
some people described a foam but pictures are not available anymore
any...
I've been trying to use this pair of RF transmitter/receiver:
https://www.sparkfun.com/products/10534
https://www.sparkfun.com/products/10532
does anybody have any experience with what type of signal it actually sends/receives?
you see that in the datasheet for the receiver you have a...
there are 2 sensor/transmitter units and 2 receiver/led units, except that the receiver units are located in the same circuit. i mention "receiver" because both of them will have the same exact function.
not only is there a voltage output from the sensor, but there is also a "Tx" output in...
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