1 files changed, 31 insertions, 27 deletions

diff --git a/content/posts/2020-09-06-esp-and-micropython.md b/content/posts/2020-09-06-esp-and-micropython.md
index ac79a6d..91a04ad 100644
--- a/content/posts/2020-09-06-esp-and-micropython.md
+++ b/content/posts/2020-09-06-esp-and-micropython.md
@@ -7,14 +7,16 @@ draft: false
 
 ## Introduction
 
-A while ago I bought some [ESP8266](https://www.espressif.com/en/products/socs/esp8266) 
-and [ESP32](https://www.espressif.com/en/products/socs/esp32) dev boards to
-play around with and I finally found a project to try it out.
+A while ago I bought some
+[ESP8266](https://www.espressif.com/en/products/socs/esp8266) and
+[ESP32](https://www.espressif.com/en/products/socs/esp32) dev boards to play
+around with and I finally found a project to try it out.
 
-For my project, I used [ESP32](https://www.espressif.com/en/products/socs/esp32) 
-but I could easily choose [ESP8266](https://www.espressif.com/en/products/socs/esp8266).
-This guide contains which tools I use and how I prepared my workspace to code 
-for [ESP8266](https://www.espressif.com/en/products/socs/esp8266).
+For my project, I used [ESP32](https://www.espressif.com/en/products/socs/esp32)
+but I could easily choose
+[ESP8266](https://www.espressif.com/en/products/socs/esp8266).  This guide
+contains which tools I use and how I prepared my workspace to code for
+[ESP8266](https://www.espressif.com/en/products/socs/esp8266).
 
 ![ESP8266 and ESP32 boards](/assets/esp8366-micropython/boards.jpg)
 
@@ -29,16 +31,18 @@ mine and once I replaced it everything started to work.
 
 ## Flashing the SOC
 
-Plug your ESP8266 to USB port and check if the device was recognized with 
+Plug your ESP8266 to USB port and check if the device was recognized with
 executing `dmesg | grep ch341-uart`.
 
-Then check if the device is available under `/dev/` by running `ls /dev/ttyUSB*`.
+Then check if the device is available under `/dev/` by running `ls
+/dev/ttyUSB*`.
 
 > **Linux users**: if a device is not available be sure you are in `dialout` 
 > group. You can check this by executing `groups $USER`. You can add a user to
 > `dialout` group with `sudo adduser $USER dialout`.
 
-After these conditions are meet go to the navigate to [https://micropython.org/download/esp8266/](https://micropython.org/download/esp8266/)
+After these conditions are meet go to the navigate to
+[https://micropython.org/download/esp8266/](https://micropython.org/download/esp8266/)
 and download `esp8266-20200902-v1.13.bin`.
 
 ```sh
@@ -48,14 +52,15 @@ cd esp8266-test
 wget https://micropython.org/resources/firmware/esp8266-20200902-v1.13.bin
 ```
 
-After obtaining firmware we will need some tooling to flash the firmware to
-the board.
+After obtaining firmware we will need some tooling to flash the firmware to the
+board.
 
 ```sh
 sudo pip3 install esptool
 ```
 
-You can read more about `esptool` at [https://github.com/espressif/esptool/](https://github.com/espressif/esptool/).
+You can read more about `esptool` at
+[https://github.com/espressif/esptool/](https://github.com/espressif/esptool/).
 
 Before flashing the firmware we need to erase the flash on device. Substitute
 `USB0` with the device listed in output of `ls /dev/ttyUSB*`.
@@ -70,8 +75,8 @@ If flash was successfully erased it is now time to flash the new firmware to it.
 esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash --flash_size=detect 0 esp8266-20200902-v1.13.bin
 ```
 
-If everything went ok you can try accessing MicroPython REPL with `
-screen /dev/ttyUSB0 115200` or `picocom /dev/ttyUSB0 -b115200`.
+If everything went ok you can try accessing MicroPython REPL with ` screen
+/dev/ttyUSB0 115200` or `picocom /dev/ttyUSB0 -b115200`.
 
 > Sometimes you will need to press `ENTER` in `screen` or `picocom` to access 
 > REPL.
@@ -83,7 +88,7 @@ When you are in REPL you can test if all is working properly following steps.
 > machine.freq()
 ```
 
-This should output a number representing a frequency of the CPU (mine was 
+This should output a number representing a frequency of the CPU (mine was
 `80000000`).
 
 When you are in `screen` or `picocom` these can help you a bit.
@@ -130,7 +135,7 @@ ampy --delay 2 --port /dev/ttyUSB0 cat boot.py
 
 ### rshell
 
-Even though `ampy` is a cool tool I opted with `rshell` in the end since it's 
+Even though `ampy` is a cool tool I opted with `rshell` in the end since it's
 much more polished and feature rich.
 
 ```bash
@@ -144,9 +149,9 @@ Now that `rshell` is installed we can connect to the board.
 rshell --buffer-size=30 -p /dev/ttyUSB0 -a
 ```
 
-This will open a shell inside bash and from here you can execute multiple 
-commands. You can check what is supported with `help` once you are inside of 
-a shell.
+This will open a shell inside bash and from here you can execute multiple
+commands. You can check what is supported with `help` once you are inside of a
+shell.
 
 ```bash
 m@turing ~/Junk/esp8266-test
@@ -177,8 +182,8 @@ Use Control-D (or the exit command) to exit rshell.
 
 #### Moving files to flash
 
-To avoid copying files all the time I used `rsync` function from the
-inside of `rshell`.
+To avoid copying files all the time I used `rsync` function from the inside of
+`rshell`.
 
 ```bash
 rsync . /pyboard
@@ -186,11 +191,11 @@ rsync . /pyboard
 
 #### Executing scripts
 
-It is a pain to continuously reboot the device to trigger `/pyboard/boot.py`
-and there is a better way of testing local scripts on remote device.
+It is a pain to continuously reboot the device to trigger `/pyboard/boot.py` and
+there is a better way of testing local scripts on remote device.
 
-Lets assume we have `src/freq.py` file that displays CPU frequency of a
-remote device.
+Lets assume we have `src/freq.py` file that displays CPU frequency of a remote
+device.
 
 ```py
 # src/freq.py
@@ -218,4 +223,3 @@ repl
 
 - https://randomnerdtutorials.com/getting-started-micropython-esp32-esp8266/
 - http://docs.micropython.org/en/latest/esp8266/quickref.html
-