E90-DTU (400SL22P)

[ludophot]

hello ,

Do the transmitters “E90-DTU (400SL22P)” and “E22-400T22D” communicate with each other?
are they compatible?

for rs485 communication can we adapt your library?

thank you

[Renzo Mischianti]

Hi ludopot,
for the compatibility I write to EByte, when i receive a response i write here.

But you can do all with a microcontroller some e22 and a max3485 ic.

To implement rs485 communication refer to this article

How to interface Arduino, esp8266 or esp32 to RS-485.

Pratically microcontroller retrieve information with max485 ic and send these with e22 device.

Bye Renzo

[Renzo Mischianti]

Hi Ludopot,
they response me

Hi Dear Customer,

Thanks for contacting Ebyte for sales and technical support.

1.All employees of Ebyte are having holiday and will get back to work after 19th, Feb. 2021.

2.Ebyte accept orders during holiday time but shipping date will be after 19th.Feb.2021.

For technical support cases, you may send your questions with full model numbers, order ID numbers, store name and, if you have, screenshots of your settings to me by email.

I will try to reply you every 1-3 days because I will have limited access to email.
Sorry for the inconvenience.
———————————
Best Regards,
Sales Engineer:Robin Hu
Email: sales06@ebyte.com
Phone: +86-18584911141
Skype: Ebyte Robin Hu
Website: http://www.ebyte.com/en/
Chengdu Ebyte Electronic Technology Co., Ltd.
Address:Building B5, Mould Industrial Park, 199# Xiqu Ave, West High-tech Zone, Chengdu, 611731

I rewrite the email with the orders information, but we must wait after the Chinese New Year.

Keep in touch, Bye Renzo

[ludophot]

thank you Renzo!

I bought this module the “E90-DTU (400SL22P)” because I have to deport the reception of the signal outside the building. the E90-DTU (400SL22P) must communicate with a set of E22 emitter-receiver. hoping that it is compatible.
the simple command to send data with an address is:
uint 8 data [4] = {addressHight, addressLow, Chanel, data1}
serial.write (data [4], 4)?
thank you

[Renzo Mischianti]

Hi Ludopot,
finally i receive the response about compatibility.

Hi Renzo,

Sorry for the late reply because we just get back to work.

For your questions:
I need information, do the transmitters “E90-DTU (400SL22P)” and “E22-400T22D” communicate with each other? Can I use these devices to send and receive data?
Answer is Yes. E90-DTU (400SL22P) can tranceive data with E22-400T22D.

Is There a table of compatibility devices?

For your reference:
1.E90-DTU+ L+xxx use E32 modules inside. so E90-DTU+L can work E32-T modules if their frequency is same(433/915).
2.E90-DTU+ SL+xxx use E22 modules inside. so E90-DTU+SL can work E22-T modules if their frequency is same(433/915).

Best Regards,

[ludophot]

thank Renzo

the configuration is a little different from the E22 it is necessary to have their software. the E90 has a timer of a few seconds after it is started to be able to enter configuration mode.
there is a 40 km version perfect for relay

 

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