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Topic: Need help with E32-TTL-1W (Read 2499 times) previous topic - next topic

BrianFernando

I purchased few E32-TTL-1W from ebay

http://www.ebay.com/itm/SX1278-SX1276-433M-E32-TTL-1W-30dBm-LoRa-Long-Range-433MHz-Transceiver-Module/191992680344?_trksid=p2060778.c100290.m3507&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3D33d7b2f0ab0f4de8b0f1cad42785551c%26pid%3D100290%26rk%3D1%26rkt%3D4%26sd%3D191992680344

With the modules I got access to the datasheet which I have attached herewith. And I received a utility from the seller to change the default settings on the module.

But I'm clueless of to use these modules. I would be very much grateful if you could help me by providing a sample code for these modules.

Thank you very much.

Robin2

Your PDF needs a password so I can't read it.

And don't provide the password - I won't use it. Post a document that does not need a password.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

BrianFernando

Your PDF needs a password so I can't read it.
Please find the information at
http://www.cdebyte.com/en/product-view-news.aspx?id=108

Click 'Manual' for the datasheet

Thanks.

Robin2

Click 'Manual' for the datasheet
It's still looking for a password.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

BrianFernando

 :smiley-confuse:  Totally weird. Both the attachment and the URL open without prompting for password. How can I send you the datasheet if these are not working?

Robin2

You must be the anointed one.  :)

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

BrianFernando

I desperately need help. How can we proceed?

Robin2

I desperately need help. How can we proceed?
Can you get the datasheet from somewhere else?

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

BrianFernando

#8
May 19, 2017, 04:38 am Last Edit: May 19, 2017, 04:44 am by BrianFernando
Can you get the datasheet from somewhere else?
These datasheets are password protected from editing, but open for viewing and printing. I couldn't find it elsewhere, so I took screenshots. Quality is poor, but readable. Archive is a bit too large to attach.

https://www.dropbox.com/s/l3ziiu3e5ogcob6/E32-TTL-1W%20Datasheet%20Screenshots.rar?dl=0

Robin2

You seem to be having a bad week :)
Quote
.rar files can't be previewed
...R
Two or three hours spent thinking and reading documentation solves most programming problems.

BrianFernando


BrianFernando

Can somebody help me please...

chiewchi

Hi, this one could be the same. 

chandeepa1

This module is a simple UART module, meaning, you can start using them by connecting them to any Serial interface on any module(Serial1/Serial2/Serial3 on Arduino Mega or SoftwareSerial on Arduino Uno - Google them if you need a guide). I went through the datasheet and it states that the module would not allow M0 and M1 in floating state, and they should be grounded for the module to work in 'Normal' mode. So the M0 & M1 pins on the modules should be connected to GND of your arduino(I don't think you're a noob, so I'll refrain from uttering such stuff). AUX pin can be left floating, rather its an output pin, if you don't need to exactly pinpoint about incoming/outgoing states of buffers, better to leave it floating. You can use 5V pin directly, 3.3V would also be fine to power up the module. If your code is not baked without eggs, everything should work except one.. one last thing.

Modules would be capable of receiving data, but not sending. The datasheet says that for receipt, 19mA-22mA current would be sufficient, but for transmission minimum of 570mA is needed. Arduino is not capable of delivering such a current, on the specs, it says that I/O pin would provide a maximum of 40mA for arduino mega. I think for other boards, there's not a huge difference, Uno is same. I'm doing some research on this now, if I'd have some time, I'll update my progress here.

chandeepa1

Power was not a problem though. It was all about impedance. You must use a 4-10KOhm resistor on the MCU's TX pin which sends data to E32 module. Everything works fine then.

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