LowPowerLab Forum

Hardware support => General topics => Topic started by: raggedyanne on September 23, 2016, 10:37:56 PM

Title: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 23, 2016, 10:37:56 PM
My man is in Shenzhen visiting his fam   :'(

HM-TRLR-S
www.hoperf.com/upload/rf/HM-TRLR-S_Series_english_.pdf (http://www.hoperf.com/upload/rf/HM-TRLR-S_Series_english_.pdf)

They seem like the perfect radio  ;D No library needed  ;)

Digikey/fleabay are selling them for $80+ which is like > 400% markup   >:(

Are they cool or what!
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 23, 2016, 10:49:57 PM
I would really love to see the Monteino with this radio nudge nudge win wink  :o
I wonder how much $$ of an incentive Felix can be bribed with  ;)
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 24, 2016, 05:22:38 AM
What it is worth, i feel :-[ i got

Real New Old v0.2
(http://lookpic.com/O/i2/764/DghhJDYR.jpeg)

Real and Old v1.2
(http://lookpic.com/O/i2/1329/Hps5Szc0.jpeg)

My swelled ego got the better of me, for the record the ones on fleabay for $80+ are fake too  ???

It should have been obvious that their is no hope logo on theses, the soic package is scrubbed off & the not so obvious the crystal is in the wrong place lol.


I feel really ashamed, the item i bought is Version 0.2 , the other item is Version 0.1 , I feel dumb for listening to a seller who told me it was fake when it wasn't.

My apologies.

Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 24, 2016, 05:24:32 AM
The more i look the more i want to  :'(
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: john4444 on September 24, 2016, 07:27:39 PM
Hi Raggedy,

Are this similar the the RFM95 with a UART?
What is the advantage?

John
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: Felix on September 25, 2016, 06:36:40 PM
Interesting, so a RF95. You'd be limited by the MCU firmware and whatever modes that implements, sorry I haven't studied the DS to really tell.
Also I see some LED's on there, unless the firmware can turn those off, the low-power-folk would probably not accept the LEDs.
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 25, 2016, 11:15:43 PM
I have to modify it again (& again)  :o , since i have better information now.
If you're a true miser , you would remove them.
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 25, 2016, 11:27:24 PM
It's a complete RF95 with a UART.
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: joelucid on September 26, 2016, 03:11:58 AM
QuoteIt's a complete RF95 with a UART.

I tend to like the SPI modules better because of the inherent unreliability of UART's. If you have a MCU with SPI support why settle for UART?
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 26, 2016, 06:34:21 AM
Each to their own  :-X

Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: Felix on September 26, 2016, 08:12:15 AM
Quote from: joelucid on September 26, 2016, 03:11:58 AM
QuoteIt's a complete RF95 with a UART.

I tend to like the SPI modules better because of the inherent unreliability of UART's. If you have a MCU with SPI support why settle for UART?

+1 for the unreliability. This really counts when your timing is sensitive.
I personally hate AT UART interfaces.
Title: Re: HM-TRLR-S SX1276 / Sx1278
Post by: raggedyanne on September 26, 2016, 08:26:09 AM
Ok