Commit Graph

7 Commits

Author SHA1 Message Date
Damien George 85acf7645f esp8266: Reinstate 1-wire scripts by sym-linking to drivers/onewire/.
No changes have been made to the code, the files just moved.
2017-06-22 16:33:20 +10:00
Damien George a065d78675 drivers/onewire: Move onewire.py, ds18x20.py from esp8266 to drivers.
These drivers can now be used by any port (so long as that port has the
_onewire driver from extmod/modonewire.c).

These drivers replace the existing 1-wire and DS18X20 drivers in the
drivers/onewire directory.  The existing ones were pyboard-specific and
not very efficient nor minimal (although the 1-wire driver was written in
pure Python it only worked at large enough CPU frequency).

This commit brings backwards incompatible API changes to the existing
1-wire drivers.  User code should be converted to use the new drivers, or
check out the old version of the code and keep a local copy (it should
continue to work unchanged).
2017-06-22 16:28:07 +10:00
Damien George 7bb0f7b0f6 drivers: Add "from micropython import const" when const is used.
Following best-practice use of the const feature, to make it compatible
with Python.
2016-11-03 12:41:11 +11:00
ernitron e5f06559e6 esp8266/modules: Fix negative temperature in ds18x20 driver. 2016-11-02 22:58:49 +11:00
Damien George 59a9509703 esp8266/modules/ds18x20.py: Add support for DS18S20 devices. 2016-08-29 12:45:07 +10:00
Damien George 8e9b98e974 esp8266/modules/onewire: Change onewire.read() to onewire.readinto().
This allows 1-wire drivers (eg DS18X20) to perform in-place operations and
hence do less memory allocations.
2016-08-29 12:27:21 +10:00
Damien George 9fba618356 esp8266/modules: Split onewire.py into OneWire and DS18X20 driver.
The OneWire class is now in its own onewire.py module, and the temperature
sensor class is in its own ds18x20.py module.  The latter is renamed to
DS18X20 to reflect the fact that it will support both the "S" and "B"
variants of the device.

These files are moved to the modules/ subdirectory to take advantage of
frozen bytecode.
2016-08-29 12:12:49 +10:00