Some more information needed

[TheCurly]

Hi Mark,

First of all, thanks for the great work! After going through the readme file, I still have a few questions:

• Would you happen to have some more information and pictures that show the connections? Pin 1 is the black cable, correct?
• Which connector goes where on the LayZspa? I would assume you plug the JST-SM Male into the pump side and the JST Female into the display side, but what are the dupoint connectors for?
• Do you have any part number for the 4 channel bi-directional logic level shifter US2?

I don't want to take too much risk with a project like this.

Best regards,
Ronny

[jenswalit]

Nice work I will build this for my vegas . Pump No 54112

[jenswalit]

I think SV1 is pump side and SV2 display.

[markgdev]

Sorry for the delay. I will try and get some pics, I would put a multimeter on the outside pins to check the polarity.

SV1 is the display side
SV2 is the pump side, you might need to adjust the pinout in the code as I notice that the schematic goes to D0 but code is set to 5 which is D1. I haven’t got around to getting another board printed yet so haven’t hit that issue - mine is strung together with cables still.

I don’t have a part number for the level shifter but it’s similar to this: https://www.ebay.co.uk/itm/4-Channel-Bi-Directional-Logic-Level-Converter-3-3V-5V-Ardunio-ESP8266-etc-/142603531109?_trksid=p2349624.m46890.l49286

The DuPont connectors are just to connect to the board, you could just solder directly though.

Hope that helps!

[jenswalit]

Many thanks for your response. Which pump do you have. Do you think I can use your codes for mine. I have the 54112.

[markgdev]

I have the 54154, I would take a guess that if it’s 4 pin it uses the same protocol though. I think there is some code commented out that will print whatever is received to serial if you have issues.

[jenswalit]

Thanks. Yes my pump is 4Pin. I will try this

[jenswalit]

Hello and thank you very much. Can I then simply use the received data for sending or do I have to convert them?

It runs im yerry happy.

[jenswalit]

Hello, I have ordered your plates. There I noticed that you are using D8. with D8 the ESP always restarts. I have now interrupted the conductor path from LV4 to D8 and put it on D2. And Change the Code. Everything is going great.

Thanks for your work.

[TheCurly]

A few level converters are on order from China, I'll try to build and test once they arrive. Thanks for the extra info!

[TheCurly]

Hi Mark,
My pump is the 54138, which is 4 pin as well. But I am not sure which pins to use. I have black, red yellow and green (starting from the arrow, pin1). I get 5V between pin 1 and 2 (black and red), and some pulses on pin 3 and 4 I presume since the multimeter value flashes slightly.