Recent content by nzm

Not sure about the pins but another possibility is oxidation on the pico hole traces. I did notice there was some difficulty in soldering the LED and vbat bridges on all 4 units I built. We use to remove oxidation on plug in circuit board contacts fairly easily with an eraser. You might try that.

It looks like that device is designed primarily as a pressure switch for industrial use (e.g., controlling solenoid valves or start equipment). The 0 - 250 kPa unit is in the range a homebrewer would use and there is a 1 - 5V analogue output option. It is also very cheap, NZ$10 delivered so an...

Good one, I'm keen to hear how it goes.

I didn't have any trouble but I do have a fairly fine point soldering iron which makes it easier to heat both the hole trace and pin. Having said that, the Pico is a small board and the holes are very close together making it a challenge regardless.

Yes, the picture on the Pressuremon Launch page looks like the latest version 1.3 of the board. Not sure if it was different when the announcement was posted. You can find the latest pcb layout here if you have KiCad: https://github.com/mp-se/pcb-designs/ You can use a pushbutton switch to...

That sensor should work fine once mper has the analogue part of the code fully implemented and tested, I think he is close. Nice that it has a quick disconnect integrated into the housing. I did see those when looking for a sensor but specifically wanted the I2C interface and the Xidibei...

I found the same issue so didn't place the order in the end. Instead I ended up using those small 170 point (35mm x 47 mm) breadboards which leaves one row either side of the pico for connecting dupont connectors. The Xidibei sensors have internal pull up resisters and we also didn't need...

I really like GravityMon as well, definitely better for my use case. And apologies, I definitely hadn't understood your query completely. I am aware that supported services handle the iSpindel data differently however. Fermentrack for example only uses the angle and disregards the SG and...

Ah, jquery, yes that is the other one I couldn't remember. Makes sense, thanks. When I enable these, it works fine in firefox.

If you calibrated at 20C and then measure at 24C, the change in water density alone will cause an uncorrected device (e.g., hydrometer, iSpindel without temp correction working) to read ~1C low. As the temp in water increases, the density decreases so a hydrometer will sink a bit more (lower...

I use Firefox with ad and popup blockers. I just have to allow jsdelivr.net plus another similar service I forget (and of course the iSpindel IP address) and it works fine. It is probably a default security feature in Firefox or a plugin like one of the ones I use. I'm away from my brewery...

Pushed {gravity}, {gravity-SG}, and {corr-gravity-SG} to BrewBlox. iSpindel configured to SG with temp correction enabled. {gravity} and {gravity-SG} read the same, {corr-gravity-SG} result is temp corrected. Because I want the option of displaying either (or both) SG and Plato, I haven't...

I assumed the temperature corrected gravity would be sent with the key ${corr-gravity-sg} so I pushed both that and ${gravity-sg} to BrewBlox and displayed them on a graph. ${corr-gravity-sg} did supply the temperature corrected value based on the ${gravity-sg} and temp values sent. I double...

With the temperature correction equation, if you made the 'cal' variable user configurable and added it as a setting (next to the check box with a default of 20C maybe?), the equation would work with any calibration temperature. The iSpindel instructions do say to calibrate at 20C (68F) but...

Temperature correction appears to be working fine. I still didn't see any correction in configuration mode after adding the corrected SG and Plato fields to the format and pressing test but I do see it in BrewBlox with it in gravity monitoring mode and the result is the same as my spreadsheet...