|  |  |  | 
     |  | _ |  | 
     
       |  | _thread | multithreading support | 
     |  |  |  | 
     |  | a |  | 
     
       |  | aioespnow | ESP-NOW :doc:`asyncio` support | 
     
       |  | array | efficient arrays of numeric data | 
     
       |  | asyncio | asynchronous I/O scheduler for writing concurrent code | 
     |  |  |  | 
     |  | b |  | 
     
       |  | binascii | binary/ASCII conversions | 
     
       |  | bluetooth | Low-level Bluetooth radio functionality | 
     
       |  | btree | simple BTree database | 
     |  |  |  | 
     |  | c |  | 
     
       |  | cmath | mathematical functions for complex numbers | 
     
       |  | collections | collection and container types | 
     
       |  | cryptolib | cryptographic ciphers | 
     |  |  |  | 
     |  | d |  | 
     
       |  | deflate | deflate compression & decompression | 
     |  |  |  | 
     |  | e |  | 
     
       |  | errno | system error codes | 
     
       |  | esp | functions related to the ESP8266 and ESP32 | 
     
       |  | esp32 | functionality specific to the ESP32 | 
     
       |  | espnow | ESP-NOW wireless protocol support | 
     |  |  |  | 
     |  | f |  | 
     
       |  | framebuf | Frame buffer manipulation | 
     |  |  |  | 
     |  | g |  | 
     
       |  | gc | control the garbage collector | 
     
       |  | gzip | gzip compression & decompression | 
     |  |  |  | 
     |  | h |  | 
     
       |  | hashlib | hashing algorithms | 
     
       |  | heapq | heap queue algorithm | 
     |  |  |  | 
     |  | i |  | 
     
       |  | io | input/output streams | 
     |  |  |  | 
     |  | j |  | 
     
       |  | json | JSON encoding and decoding | 
     |  |  |  | 
     |  | l |  | 
     
       |  | lcd160cr | control of LCD160CR display | 
     |  |  |  | 
     |  | m |  | 
     
       |  | machine | functions related to the hardware | 
     
       |  | math | mathematical functions | 
     
       |  | micropython | access and control MicroPython internals | 
     |  |  |  | 
     |  | n |  | 
     
       |  | neopixel | control of WS2812 / NeoPixel LEDs | 
     
       |  | network | network configuration | 
     |  |  |  | 
     |  | o |  | 
     
       |  | openamp | provides standard Asymmetric Multiprocessing (AMP) support | 
     
       |  | os | basic "operating system" services | 
     |  |  |  | 
     |  | p |  | 
     
       |  | platform | access to underlying platform’s identifying data | 
     
       |  | pyb | functions related to the board | 
     |  |  |  | 
     |  | r |  | 
     
       |  | random | random numbers | 
     
       |  | re | regular expressions | 
     
       |  | rp2 | functionality specific to the RP2 | 
     |  |  |  | 
     |  | s |  | 
     
       |  | select | wait for events on a set of streams | 
     
       |  | socket | socket module | 
     
       |  | ssl | TLS/SSL wrapper for socket objects | 
     
       |  | stm | functionality specific to STM32 MCUs | 
     
       |  | struct | pack and unpack primitive data types | 
     
       |  | sys | system specific functions | 
     |  |  |  | 
     |  | t |  | 
     
       |  | time | time related functions | 
     |  |  |  | 
     |  | u |  | 
     
       |  | uctypes | access binary data in a structured way | 
     |  |  |  | 
     |  | v |  | 
     
       |  | vfs | virtual filesystem control | 
     |  |  |  | 
     |  | w |  | 
     
       |  | wipy | WiPy specific features | 
     |  |  |  | 
     |  | z |  | 
     
       |  | zephyr | functionality specific to Zephyr | 
     
       |  | zlib | zlib compression & decompression | 
     
       |  | zsensor | zephyr sensor bindings |