Your latest purchase

Hi,
I bought a couple of these ESP32 Devkit V1 boards.
esp32.jpg
Have got one operating in Cayenne, I’ve made a dashboard to observe.
This link will get you to it.

https://cayenne.mydevices.com/shared/5b3aeaa9c43373181503a6ed
dash1.jpg
Its just a basic;
Temperature, Humidity using DHT11
Pressure using a BMP085 that has bug that occurs when the environment gets to cold.
Room Light level is just an LDR.

The counter just counts the number of transmissions since turn-on.
The Packet Intervals is the time between transmission data bursts.

I have my own personal dashboard with some LED controls and servo control sliders on it.
I might put a LED control button on it, just to see who wants to play. :slight_smile:

I have it here at home and I take it to work and plug it back in so the data will not always be continuous.

Tom… :slight_smile:

Get some hall effect sensors and make yourself a anemometer

Qdeathstar: Get some hall effect sensors and make yourself a anemometer

Yes, I could, I've got three identical deodorant spray can lids for the cups. :o :o The ESP32 even has a Hall Effect device fitted inside the wroom package.

Tom... :)

Arduino-like board with ZIF socket, AVR power that can be disconnected separately from the USB port, and easily disabled auto-reset. It’s mostly for testing Optiboot, especially WRT the issues that have been outstanding WRT reset-cause and MCUSR… It’s also got footprints for tiny84x and tiny1634, and only a couple of minor bugs.

(I really like those CH340E USB modules!)
(Oh yeah; it’s also entirely Through-hole, and mostly single-sided. The SMT footprints and “top layer other than things that could be jumpers” only got added after I realized that I was going to be lazy and send the board off to OSHPark instead of getting the LPKF working…)

I like the Attiny1634. It is almost as good as an Atmega 328 but in a small SOIC package that is still big enough for hand-soldering - unlike the SMD versions of the 328.

However it seems to me the size value would be lost on a PCB designed for an DIP version of a 328 ?

...R

I like the Attiny1634. : However it seems to me the size value would be lost on a PCB designed for an DIP version of a 328 ?

Yes. In this case, the 1634 footprint is essentially ONLY useful for testing bootloaders...

westfw: Arduino-like board with ZIF socket, AVR power that can be disconnected separately from the USB port, and easily disabled auto-reset. It's mostly for testing Optiboot, especially WRT the issues that have been outstanding WRT reset-cause and MCUSR... It's also got footprints for tiny84x and tiny1634, and only a couple of minor bugs.

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(I really like those CH340E USB modules!) (Oh yeah; it's also entirely Through-hole, and mostly single-sided. The SMT footprints and "top layer other than things that could be jumpers" only got added after I realized that I was going to be lazy and send the board off to OSHPark instead of getting the LPKF working...)

Looks great!

Do you have a link where you got your driver for the CH340E.

Is that a self contained module i.e. CH340E and USB connector? Link?

What’s the yellow wire?

Do you have a link where you got your driver for the CH340E.

I've been getting them direct from http://www.wch.cn/products/CH340.html for my Mac. Recent W10 tests seemed to show no driver needed. ?

Is that a self contained module i.e. CH340E and USB connector? Link? What's the yellow wire?

Yep. https://www.aliexpress.com/store/product/1PCS-CH340E-USB-to-TTL-Serial-Converter-5V-3-3V-Universal-Not-need-switching-Model-BTE17/213957_32821571106.html?spm=2114.12010608.0.0.4c137610DKxfYb I mount the module "upside down" to provide some additional physical security for the microUSB connector. The yellow wire just goes through the mounting holes and is soldered on the back... (One thing "wrong" with this module is that there's no copper around the mounting holes, so you can't solder pins for physical support.)

westfw: I've been getting them direct from http://www.wch.cn/products/CH340.html for my Mac. Recent W10 tests seemed to show no driver needed. ?

Yep. https://www.aliexpress.com/store/product/1PCS-CH340E-USB-to-TTL-Serial-Converter-5V-3-3V-Universal-Not-need-switching-Model-BTE17/213957_32821571106.html?spm=2114.12010608.0.0.4c137610DKxfYb I mount the module "upside down" to provide some additional physical security for the microUSB connector. The yellow wire just goes through the mounting holes and is soldered on the back... (One thing "wrong" with this module is that there's no copper around the mounting holes, so you can't solder pins for physical support.)

Thank you for the info.

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If you can drill the holes to 3mm diameter, you could press fit 3.2mm brass inserts then solder the inserts to the foil around the enlarged holes. However, looks like the holes are quite close to the board edges.

Maybe PCB eyelets could be riveted in the holes, solder to the eyelets. |500x500

Own designed PCB (my first, from a shop as opposed to home-CNC’ed) - attached

/Msquare

I bought a similar one a while back.

This one looks okay but low amperage though.

Check PDF for data. 0-24@0-1amp 0-24@0-1amp 5@2amp

http://www.farnell.com/datasheets/2257000.pdf?_ga=2.14241460.268537782.1533953919-761411809.1525969838

$70.88 USD

http://www.newark.com/tenma/72-8335a/power-supply-3ch-24v-2a-adjustable/dp/47X1648?ost=72-8335A&ddkey=http%3Aen-US%2FElement14_US%2Fsearch

3dprinter: Own designed PCB (my first, from a shop as opposed to home-CNC'ed) - attached

/Msquare

What does it do? Level shifter?

It is a driver board for old FlipDot displays The small SMD pads are a H-bridge used for small DC motors; two digital output pins from the arduino thus make a dot flip (and flop). Simple.
20180811_102104.jpg

Cool device!

Hi, Just got my DigiRule2, an ALTAIR 8800 CLONE...

https://bradsprojects.com/digirule2/

Down loading the instruction manual for it.

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Tom.... :)

Niicce.

ISY controller and a whole bunch of Insteon stuff.

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I want to make somethng move:

What are the little boards with 3 pins?

...R

ChrisTenone: I want to make somethng move:

Banksy shredder.....