Electronics notes
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#+title: ESPHome
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A platform for building firmware for [[id:d97fde4a-0e91-40f9-ac57-d0cd67295d14][ESP2866]] and ESP32 microcontrollers using
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YAML configuration files using a syntax similar to HomeAssistant that integrates
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easily with HomeAssistant installations.
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YAML configuration files using a syntax similar to Home Assistant that
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integrates easily with Home Assistant instances.
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20221028233501-building_electronics_projects.org
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20221028233501-building_electronics_projects.org
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:PROPERTIES:
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:ID: 2073a538-7846-4c4c-b385-58922d129cf7
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:END:
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#+title: Building electronics projects
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* Microcontrollers
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:PROPERTIES:
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:ID: c412e81c-9271-4224-89b7-315a4b89968e
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:END:
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- The [[id:d97fde4a-0e91-40f9-ac57-d0cd67295d14][ESP2866]] and its successor, the ESP32, are very versatile and include
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2.4Ghz WiFi radios.
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* Connecting wires
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- [[id:a5a28104-8ecb-42d9-899f-8caac37dec04][Using electrical connectors]]
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20221028233746-using_electrical_connectors.org
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20221028233746-using_electrical_connectors.org
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:PROPERTIES:
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:ID: a5a28104-8ecb-42d9-899f-8caac37dec04
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:END:
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#+title: Using electrical connectors
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WAGO lever nuts (particularly the 221 models) are easy to use, work with solid
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core and stranded wire, and are transparent so you can tell that the connections
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have been made well. These seem better than twist-on wire nuts (mirettes), which
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are far cheaper but can be error prone as it is nearly impossible to tell
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whether the connection is good.
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* WAGO 221 connector :ATTACH:
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:PROPERTIES:
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:ID: 7b3d6d8a-357d-410a-b301-306803241e30
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:END:
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#+attr_org: :width 400
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[[attachment:_20221029_001058221-413-1.jpg]]
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* Wire nuts :ATTACH:
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:PROPERTIES:
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:ID: 2cf96703-9f9a-40b9-9491-5aed77359f3c
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:END:
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#+attr_org: :width 400
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[[attachment:_20221028_234847Array_of_twist-on_wire_connectors_aka_wire_nuts_in_different_sizes.jpg]]
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20221029000251-home_automation.org
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:PROPERTIES:
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:ID: 4e6aacd1-ee81-4290-b1cd-797f9edcf826
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:END:
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#+title: Home automation
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* Commercial devices
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- Tuya devices tend to use [[id:d97fde4a-0e91-40f9-ac57-d0cd67295d14][ESP2866]] microcontrollers under the hood and can be
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converted to use other firmwares by abusing their easy-mode wireless discovery
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with [[https://github.com/ct-Open-Source/tuya-convert][tuya-convert]]. Unfortunately, newer Tuya firmwares render this method
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unusable, and some devices no longer use ESPs.
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* DIY devices
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[[id:659c836d-0934-4496-a163-a51ccaccc117][ESPHome]] is a great platform for programming [[id:c412e81c-9271-4224-89b7-315a4b89968e][Microcontrollers]] in custom-built
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devices.
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