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Hi all,

Just ordered a TX and RX board and in the process of ordering components for both boards.

I have a couple of questions with the RX board....

IC4 listed as AT24C64 Serial EEPROM, my search shows 2 types, one with a "D" at the end which has a 400kHz clock speed, the other with a "B" at the end which has a 1MHz clock speed.

IC2 which is a AT45DB011D-SSH-B  Adesto branded 1Mb 2.7V dataflash is now obsolete on both Digikey & Mouser, also Ebay returned no results.

Looking forward to getting these boards and making my own weather station!!

Regards, Andrew Smith
Hi Andrew Smith,

(02-06-2020, 02:41)smithers1962 Wrote: [ -> ]IC4 listed as AT24C64 Serial EEPROM, my search shows 2 types, one with a "D" at the end which has a 400kHz clock speed, the other with a "B" at the end which has a 1MHz clock speed.

Usually I use the 24C64N which is 400kHz, so both D and B should work.



(02-06-2020, 02:41)smithers1962 Wrote: [ -> ]...
IC2 which is a AT45DB011D-SSH-B Adesto branded 1Mb 2.7V dataflash is now obsolete on both Digikey & Mouser, also Ebay returned no results.

Indeed the AT45DB011D is no more in production, but still is widely available on eBay and AliExpress.
That is exactly the same chip used on Davis data logger.

Here are some links on ebay:
Germany - https://www.ebay.com/sch/i.html?_from=R4...D&_sacat=0
China - https://www.ebay.com/itm/5PCS-X-AT45DB01...SwYDhcuWnS


Rgs
Hi Werk_AG,

Thank you for your quick reply.

Don't know why my Ebay search never turned your link up, oh well, have ordered them now, also the 400kHz version of the serial eeprom.

Also, just confirming that the 0805 smd resistors are 1/8 watt & the 0805 smd capacitors are 16V?

Regards, Andrew Smith
(02-06-2020, 04:46)smithers1962 Wrote: [ -> ]... the 0805 smd capacitors are 16V?
Hi again,

smd capacitors are 1206 - 50V - 10%

Rgs
(02-06-2020, 05:31)Werk_AG Wrote: [ -> ]
(02-06-2020, 04:46)smithers1962 Wrote: [ -> ]... the 0805 smd capacitors are 16V?
Hi again,

smd capacitors are 1206 - 50V - 10%

Rgs

Sorry, made 2 mistakes in the last post, I did mean 1206 for the caps but thanks for clarifying 50V 10%.
Next mistake was the resistors, I did mean to put 1/4 watt instead of 1/8 watt, do you agree with 1/4 watt Werk_AG?

Regards, Andrew Smith
Hi Andrew Smith,

I believe that the 0805 resistors usually are 1/8 watt.
Always used 1/8 watt on the Pro2 PLUS boards.

Rgs