great!
iDeal caused a time out, and it really took long but with enough patience paypal did work though.
I tested these ‘touch key modules’ and they work very well… tested them behind the lid of a waterproof enclosure… no problem at all !
1 Like
Great suggestion. I had planned to use a reed relais in the waterproof housing to add control to the project.
now you can glue them on one side and on the outside a printed (transparant) selfadhesive with text 
oh… and there is a LED onboard to
- http://www.instructables.com/id/Using-the-Pololu-Pushbutton-Power-Switch/
- https://www.vanallesenmeer.nl/Pushbutton-Power-Switch-LV-Pololu-751
combined with this Pololu power switch, you can switch the whole system on/off by touch and even let the processor itself switch the whole system off.
1 Like
What happens when you get water on the case? Maybe mixed with a bit of sediment like a case which has been outside for a long time and then it rains.
2 Likes
good question, I don’t know, have to try this with some water splashed on the enclosure…
ok under the tap and… it switches, that’s not good at all 
1 Like
Maybe put one or two sensors extra around it and use these to distinguish between accidental water/sediment coverage and the press of a finger?
maybe, but it’s still a risk.
something like this ?
I think it just means a vertical mounting position and with a rain visor over it.
for logging and storing data
Now, with our I2C FRAM breakout board you can add some FRAM storage to your next DIY project. FRAM allows for a lower power usage and a faster write performance. It’s excellent for low-power or inconsistent-power datalogging or data buffering where you want to stream data fast while also keeping the data when there’s no power. Unlike Flash or EEPROM there’s no pages to worry about. Each byte can be read/written 10,000,000,000,000 times so you don’t have to worry too much about wear leveling.
This particular FRAM chip has 256 Kbits (32 KBytes) of storage, interfaces using I2C, and can run at up to 1MHz I2C rates. Each byte can be read and written instantaneously (like SRAM) but will keep the memory for 95 years at room temperature.
US $4.37 incl. shipping
3 Likes
US $1.45 incl. shipping
5 pc. US $6.00 incl shipping