No values webinterface

[rwr88]

So, as you can see above, I finally managed to get the webapi going. I bought a new amplifier (https://www.adafruit.com/product/3328), the MAX31855, because I've a PT100 sensor I thought it might has something to do with this.. This has the following outputs:

• GND
• VIN
• 3vs3
• CLK
• SDO
• SDI
• RDY
• CS

I've connected them in the following manner:

• VCC (green wire) to RPI physical pin Add circuit diagram to README #17
• GND (red wire) to RPI physical pin Explanation for cold/warm switch in pid_loop #25
• SO (yellow wire) to RPI physical pin Light doesn't turn on #21
• SCK (blue wire) to RPI physical pin No values webinterface #23
• CS (black wire) to RPI physical pin removed snooze, added sleep/wake timer #24

SSR is connected to:

• SSR + (red wire) to RPI physical pin Silvia pi new #37
• SSR - (white) to RPI physical pin #39

Also we've measured on the amplifier the values of the PT100 in ohm. This is functioning properly.

So the question is: why aren't we receiving any values on the webapi? Is this because the amplifier isn't giving the signal to the RPI?

[rwr88]

I've enclosed the electrical scheme i've drawed, based on the original scheme of Rancilio.

[rwr88]

Images weren't visible, so i've enclosed them for a second time + some extra pictures of how wired it.

[adamhratcliffe]

In the config.py check the sample rate. My sensor only works if the rate is 0.2 and above. Adam.

…

On Sun, 20 Jan 2019 at 11:43, rwr88 ***@***.***> wrote: [image: image] <https://user-images.githubusercontent.com/43532945/51438685-9cfa1380-1caf-11e9-9490-0d432d69b9d2.png> So, as you can see above, I finally managed to get the webapi going. I bought a new amplifier (https://www.adafruit.com/product/3328), the MAX31855, because I've a PT100 sensor I thought it might has something to do with this.. This has the following outputs: - GND - VIN - 3vs3 - CLK - SDO - SDI - RDY - CS I've connected them in the following manner: - VCC (green wire) to RPI physical pin #17 <#17> - GND (red wire) to RPI physical pin #25 - SO (yellow wire) to RPI physical pin #21 <#21> - SCK (blue wire) to RPI physical pin #23 <#23> - CS (black wire) to RPI physical pin #24 SSR is connected to: - SSR + (red wire) to RPI physical pin #37 - SSR - (white) to RPI physical pin #39 Also we've measured on the amplifier the values of the PT100 in ohm. This is functioning properly. So the question is: why aren't we receiving any values on the webapi? Is this because the amplifier isn't giving the signal to the RPI? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#23>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJbNeXbYHGWfEMvIYIlZXkS-45gJtks5vFFZ6gaJpZM4aJmbC> .

[rwr88]

Hi Adam,
Can you explain how i can check that?

[adamhratcliffe]

Once you have SSH’ed into your pi use the following command sudo nano /root/silvia-pi/config.py Thanks, Adam

…

On 20 Jan 2019, at 11:49, rwr88 ***@***.***> wrote: Images weren't visible, so i've enclosed them for a second time + some extra pictures of how wired it. <https://user-images.githubusercontent.com/43532945/51438849-c9af2a80-1cb1-11e9-81f4-1182e8ca430f.jpg> <https://user-images.githubusercontent.com/43532945/51438850-ca47c100-1cb1-11e9-95f5-542db7a40475.jpg> <https://user-images.githubusercontent.com/43532945/51438851-ca47c100-1cb1-11e9-93c3-2ea97bf73f74.jpg> <https://user-images.githubusercontent.com/43532945/51438852-ca47c100-1cb1-11e9-8cb8-d39f3b005b1a.jpg> <https://user-images.githubusercontent.com/43532945/51438853-ca47c100-1cb1-11e9-8bf4-2b657cc9611f.jpg> — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJUuH9FSs4yJsBGUAeFIWjzp4RkqFks5vFFfLgaJpZM4aJmbC>.

[rwr88]

Adam,
Thanks so much for your help. I feel like a complete noob: but how can I save the change?

[adamhratcliffe]

Hello. You press control and W Thanks, Adam

…

On 20 Jan 2019, at 12:26, rwr88 ***@***.***> wrote: Adam, Thanks so much for your help. I feel like a complete noob: but how can I save the change? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJbKkELP9epa7r2vDddcFgqxl-0AQks5vFGCRgaJpZM4aJmbC>.

[rwr88]

So, i've tried a bunch of stuff.. but when I exit and do another SSH session, the config is still 0.1..

[adamhratcliffe]

Right so it definitely isn’t saving. At the bottom the the nano window it should say which buttons to Press to save. It should give you a prompt as you exit to save or not.

…

On Sun, 20 Jan 2019 at 12:41, rwr88 ***@***.***> wrote: So, i've tried a bunch of stuff.. but when I exit and do another SSH session, the config is still 0.1.. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJREVkBX-blYQIsfMp62k2nDdE5jgks5vFGPlgaJpZM4aJmbC> .

[rwr88]

First screen is the home screen, second is when I press CTRL+W. There is an option that's called 'Opslaan' (Save), but that only says ^O... when I enter this, nothing happens

[rwr88]

Also, the webinterface doesn't work from time to time.. It should be accesible all of the time right?

And the problem no is: the heating element is triggered, but it is never shut off. So it just keeps on heating, even if the desired temp is reached.

[rwr88]

Adam, (or Bryce)
Do you know how I can make adjustments to the config? Or better: how I can save those changes?

[adamhratcliffe]

Hello. The heating element issue may be down to the config pin you have selected for the heating element. In the config.py file change the he pin to 37 (I will check when home) and change the heating element refresh rate to 0.2 I really don't know why it wouldn't be saving. Have you tried using an alternative text editor or if possible editing the files directly on the PI or are you running headless?

…

On Tue, 22 Jan 2019 at 11:53, rwr88 ***@***.***> wrote: Adam, (or Bryce) Do you know how I can make adjustments to the config? Or better: how I can save those changes? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJaDIdbcx-o6wAYrOnt_qvR1PoQeNks5vFvvEgaJpZM4aJmbC> .

[rwr88]

Ah, changing it to 37 might do the trick. So, am I running headless.. can you perhaps show me how it looks like if you're changing something I'm the config?

[adamhratcliffe]

I can do but you'll have to wait for a few hours until I am home. Have you managed to find a way to save it control and x doesnt work?

…

On Tue, 22 Jan 2019 at 15:36, rwr88 ***@***.***> wrote: Ah, changing it to 37 might do the trick. So, am I running headless.. can you perhaps show me how it looks like if you're changing something I'm the config? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AoViJRy3JynB6Io-zC5UZRjPeuKOJnS-ks5vFy_lgaJpZM4aJmbC> .