1-wire serial protocol and expensive sensor

Using Arduino Sensors
1

Before I spend $300 on a sensor that I THINK I can use with Arduino, I wanted someone else's opinion.

This is the link to the sensor datasheet:

This is the link to the library I THINK will work with it:

The data sheet seems to say this thing is 100% compatible with Arduino (without saying it's 100% compatible with Arduino).

From the data sheet:

Supply Voltage: 3.6 to 5.5 Vdc or 10 to 30 Vdc

Current:
Default sensing: 180 µA
Disabled sensing: 40 µA
Active comms: 3.3 mA

1-wire serial interface
Baud Rates: 9.6k, 19.2k (default), or 38.4k
Data Format: 8 data bits, No parity (default), even parity, or odd parity. 1 stop bit

It looks like this thing is going to send me a 8-bit number between 0 and 65535 and all I have to do is "map" that to distance to get a measurement. I plan to process the input and send the info via Wi-Fi (or bluetooth) to another board with a screen to display the output "remotely."

Does ANYONE see ANY reason why this would not work with an Arduino???

Does anyone see anything that might be tricky (like needing a resistor or a capacitor, etc)?

I AM NOT holding ANYONE responsible for their opinion, but if this works, then the whole field of Banner sensors opens up to me. This would give me high-quality sensors -- not the $4 "toys" that I currently have use that restrict me from doing better, more durable projects.

Thanks in advance!

2

No, I would certainly not assume that their "1-wire" interface is the same as the Analog Devices (formerly Maxim; originally Dallas) 1-WireTM bus.

That sounds like async serial - not 1-WireTM

Added:

Contact them and ask: https://www.bannerengineering.com/us/en/forms/contact-us.html

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3

I don't see any mention at all of "Arduino" in that datasheet? :thinking:

4

This is the 1-WireTM which that Arduino library supports:

5

How did you arrive at that conclusion?
Maybe it sends an "OK" then waits for you to send "GO" then it sends you a 32 bit number that represents a floating point number

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6

It seems they make a USB adaptor:

Perhaps you could get one of them, and see what's going on ... :thinking:

7

Errrr .... :thinking:

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8

I have sent this message to their engineering department:

Looking at ultra-sonic sensor: K50UX1CRA, is the "1-wire" interface the same as Analog Devices (formerly Maxim; originally Dallas) 1-Wire bus?

If I do not get a return e-mail by Wednesday, I will contact by phone. For the sake of the integrity of this thread, I will post whatever the answer is.

9

Yeah, that's a pretty obvious mistake -- I'm not too good with some of the "guts" of binary, but i can write code (a little).

The data sheet says it can read between 0 and 65535 millimeters and send an 8-bit number via serial...

Info like this is why I posted here before buying! Thank you.

10

I can tell you right now it is not.

3 Likes
11

Do you think the info can be read by an Arduino? or ESP-32?

12

Yes, if you can find documentation on how to read the data and what the data will be.

13

The probability that this interface is

But above the voltage-signals they use a logical protocol called DX80 Sensor-Node
You will have to find out how this protocol works.
Without obeying each and every detail of this communication-protocol called
DX80 Sensor-Node
You will be unable to communicate with these sensors.

$300 is pretty expensive. In this price-range there will be more companies that offer ultra-sonic distance measuring.

best regards Stefan

14

Then we shall wait for Banner to respond. If they don't volunteer the info, what question do I need to ask?

Thank you for your input this morning (it's morning for me).

15

You may have answered my question to @jim-p

I'll have to research the DX80.

I am not excluding any other sensors, and a laser or Lidar sensor may be better, but i would prefer a durable sensor from a reputable manufacturer -- the "toys" on Amazon and Ebay are just not good enough. I'm replacing them too often.

16

Are you referring to this:

image
image707×254 26.2 KB

Note that is says the 65535 value is an error value - so not an actual distance measurement.

The measurement distance specs are here:
image

I think you're misinterpreting this:
image
That's just telling you that it sends data 8 bits at a time.

17

0-255 is definitely between 0 and 65535, the assertion is true :slight_smile:

My understanding is that @johnnycatt is looking at the Sure Cross® U-GAGE K50U Ultrasonic Sensor. This sensor has a One Wire interface

they say then in the doc

image
image1005×95 17.1 KB

so I guess that the DX80 Sensor-Node is one such separate device that talks 1-Wire on one side (reading the data from the ultrasonic sensor) and it gives the information on the other side over UART

if @johnnycatt only buys the ultrasonic sensor then he will have to use the documented hardware interface

image
image997×207 13.5 KB

(but they show a pin for 1-Wire serial communications and 1-Wire serial device select which seems weird (do you send the address on the select line and then use the other line for communication?)

18

You may want to check out the sensors made by this company.
They have been around for quite a while.

19

Indeed it has a one wire interface - but that doesn't mean that it is the One-WireTM interface invented by Dallas (subsequently acquired by Maxim and then AD) and used on things like the well-known DS18B20.

And, looking at the specs of that "one wire" interface, I'd be pretty certain that it is not the One-WireTM interface:
image
That sounds very much like just a standard UART async serial interface!
But using just one wire - so either half-duplex or Tx-only.

20

Very good point. If it really is Tx only which is very likely that it is.

If it is Tx only In the sense of the receiver of the measured data (your arduino) does not have to send back acknowledge answers or anything like that.

Then it should be pretty easy to decipher the datastream.

best regards Stefan