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--- mission:resources:picoreflow [2016/10/09 12:15] – [Heating] chrono
+++ mission:resources:picoreflow [2016/10/27 22:33] (current) – [Heating] chrono
@@ Line 99: / Line 99: @@
 | {{:mission:resources:picoreflow-ssr-signal-pulldown-connection.png?320|}} | {{:mission:resources:picoreflow-ssr-signal-pullup-connection.png?320|}} |
-The default configuration has historically been to use the PullDown config, i.e. when you pull GPIO23 low the heater is on and when you pull GPIO23 high the heater is off. Please keep in mind that you'll have to have some script/code in your setup that makes sure that GPIO23 is pulled high as soon as the system has booted (to be sure the heater is off) or change your setup to PullUp connection instead if you don't want to worry/bother.
+The default configuration has historically been to use the PullDown config, which results in an inverted control logic: When you pull GPIO23 low, the heater is switched on and when you pull GPIO23 high, the heater is switched off.
+<WRAP round important>
+**Please keep in mind that you'll have to have some script/code in your setup that makes sure that GPIO23 is pulled high as soon as the system has booted** (to be sure the heater is off) or change your setup to PullUp configuration instead, if you don't want to worry/bother.
+</WRAP>
 ==== Cooling ====
@@ Line 285: / Line 290: @@
 A custom built oven to bake carbon composite parts.
+==== WiFi/Raspberry Pi pottery kiln controller ====
+{{:mission:resources:kilnrunning.jpg|}}
+http://succulentceramics.com/2016/10/07/wifiraspberry-kiln-controller/
 {{tag>research lab reflow oven pid controller raspberry pi picofab software hardware}}

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