Mercurial > mbsePi-apps / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MIGRATION	Sat Mar 23 09:31:01 2024 +0100
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+		Migration from wiringPi to PIGPIO.
+		==================================
+
+WiringPi is unmaintained and replaced by pigpio. This will need large parts
+of thermferm to be rewritten. It is also a good moment to replace the current
+server protocol with json data and start sending data chaanges over
+websockets.
+
+Some parts of the code can make use of direct kernel support, since kernel 4
+there are lots of new modules. Fact is that thermferm is started in 2014,
+that is 10 years ago.
+
+The current devices model is not very practical. We need to separate the parts
+that don't need gpio out of it. All one-wire devices need their own driver
+thread.
+
+
+	Current threads.
+	----------------
+
+These are the current running threads.
+1. my_devices_loop.
+2. my_server_loop.
+3. my_panel_loop.
+4. my_simulator_loop (if enabled).
+
+
+
+	Steps to do.
+	------------
+
+Write a new thread for the one-wire devices. Make it a dynamic table. The
+old device table is still needed to tie devices to fermenters.
+Try to read all temperature sensors at once. The kernel supports this now.
+The devices thread needs to use the collected temperatures.
+Read all ds2413 devices from sys/bus/w1. If output bits are set different
+then send output values.
+Create tables for ds28b20 and ds2413. Simulated and real sensors should
+share these tables.
+
+
+Add pigpio library and make it testable by the configure script.
+