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<h1 align="center" style="margin: 30px 0 30px; font-weight: bold;">PikaScript</h1>
<h4 align="center">Cross platform ultra lightweight embedded Python engine</h4>
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<a href="README_zh.md" >中文页</a> |
<a href="https://whycan.com/f_55.html" >Forum</a> |
<a href="https://pikadoc.readthedocs.io/en/latest/index.html" >Documents</a> |
<a href="https://space.bilibili.com/5365336/channel/detail?cid=202329">Videos</a> |
<a href="../../tree/master/bsp#platform-support">BSP</a> |
<a href="https://pikadoc.readthedocs.io/en/latest/%E5%8C%85%E7%AE%A1%E7%90%86%E5%99%A8%E4%B8%8E%E6%A8%A1%E5%9D%97%E7%AE%A1%E7%90%86.html">Package Manager</a> |
<a href="https://pikadoc.readthedocs.io/en/latest/%E4%BB%8E%20RT-Thread%20%E8%BD%AF%E4%BB%B6%E5%8C%85%E5%BC%80%E5%A7%8B.html" >RT-Thread package</a> |
<a href="https://pikadoc.readthedocs.io/en/latest/%E5%A6%82%E4%BD%95%E5%8F%82%E4%B8%8E%E7%A4%BE%E5%8C%BA%E8%B4%A1%E7%8C%AE.html" >Contribute</a> |
<a href="https://pikadoc.readthedocs.io/en/latest/%E5%95%86%E4%B8%9A%E5%90%88%E4%BD%9C%E6%96%B9%E5%BC%8F.html">Business</a>
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[](https://pikastech.github.io/pikascript/dev/bench/)
# 1. Abstract
PikaScript is an ultra-lightweight Python engine with zero dependencies and zero-configuration, that can run with 4KB of RAM and 32KB of flash (such as STM32G030C8 and STM32F103C8).
<img src="https://user-images.githubusercontent.com/88232613/147799704-d79345da-a2b9-4593-b1eb-ff9de127429a.png" width="500"/>
It's very easy to bind C function to python module with the help of Pika Pre-compiler.Only write the API of python in `.pyi` and the bindings are autoly generated by Pre-compiler.
The Pre-compiler is fully open-source, and the source code is in the [tools](https://github.com/pikasTech/pikascript/tree/master/tools) folder.
# Get PikaScript:
## Use Online Project Generator
Generator url:
http://pikascript.com
Note: You need the [Community Edition license (Now Free)](https://www.keil.com/pr/article/1299.htm) to build Keil projects, and the version of Keil should be newer than v5.36.
[](http://pikascript.com)
## Use Pika package manager [PikaPackage.exe](https://pikadoc.readthedocs.io/en/latest/%E5%8C%85%E7%AE%A1%E7%90%86%E5%99%A8%E4%B8%8E%E6%A8%A1%E5%9D%97%E7%AE%A1%E7%90%86.html)
1. Run the [PikaPackage.exe](https://gitee.com/Lyon1998/pikascript/attach_files/907478/download) directly, then the pikascript repo would be downloaded auto in the /tmp/pikascript folder of your current disc partition.
2. Add [requestment.txt](/bsp/stm32g030c8/pikascript/requestment.txt) to the same folder of PikaPackage.exe then run [PikaPackage.exe](../../raw/master/tools/pikaPackageManager/pikaPackage.exe). The [run-time core](../../tree/master/src), [pre-compiler](../../tree/master/tools/pikaCompiler) and [moudles](../../tree/master/package) would be installed in the current folder.
3. Released modules：[packages.toml](packages.toml)
# Quick Start
You can use [simulation project](https://pikadoc.readthedocs.io/en/latest/Keil%20%E4%BB%BF%E7%9C%9F%E5%B7%A5%E7%A8%8B.html) to quick start without hardware，or use the out-of-the-box develop board [Pika-Pi—Zero](https://item.taobao.com/item.htm?spm=a2126o.success.result.1.76224831Y0X1gO&id=654947372034).
The board based on STM32G030C8T6 MCU, only 64kB Flash, 8kB RAM can run PikaScript with total peripheral device (GPIO、TIME、IIC、RGB、KEY、LCD、RGB).
CH340 is deployed to support USB to serial with Type-C USB, support download python script py serial, there are 4 RGB on the board and support the [LCD](https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-23991764791.12.16f97c58fsLjVk&id=660745643102).
# Related Projects
- ⭐ [PikaScript Bluepill Demo In PlatformIO — Python-like REPL 🐍🔌](https://github.com/maxgerhardt/pikascript-pio-bluepill)
- ⭐ [PikaScript Bluepill Demo In GCC 🐍](https://github.com/Chandler-Kluser/pikascript_gcc_bluepill)
# Document
https://pikadoc.readthedocs.io/en/latest/index.html
## How to contribute
https://pikadoc.readthedocs.io/en/latest/%E5%A6%82%E4%BD%95%E5%8F%82%E4%B8%8E%E7%A4%BE%E5%8C%BA%E8%B4%A1%E7%8C%AE.html
## Folders
[src](../../tree/master/src) - core code
[bsp](../../tree/master/bsp) - mcu/board support
[port](../../tree/master/port) - OS and package manager
[test](../../tree/master/port/linux/test) - unit test
[document](../../tree/master/document) - developt document
[examples](../../tree/master/examples) - example scripts
[package](../../tree/master/package) - packages and moudles
[pikaCompiler](../../tree/master/tools/pikaCompiler) - pre-compiler write by Rust, used to bind C function to python moudle.
[pikaPackageManager](../../tree/master/tools/pikaPackageManager) - pacakge manager
# 2.Platform support
## MCU support
!INCLUDE "bsp.mdpp"
## Board support
!INCLUDE "board.mdpp"
## OS support
!INCLUDE "os.mdpp"
# 3.Characteristic
### (1)Run environment
Support run in mcu without OS or file system. Can run in everywhere with **RAM ≥ 4kB** and **FLASH ≥ 32kB**，such as stm32g030, stm32f103c8t6，esp8266.
### (2)Develop enviroment
#### Support REPL by serial.
<img src="assets/1641178790145-2f026e70-4ba1-4e9a-b05f-c602b2bd8cad.png" width="400" alt="微信交流群"/><br/>
#### Support run and program python scripts by serial.
<img src="document/image/134841230-85de6734-8467-4245-93a5-d452b5022b42.gif" width="400" alt="微信交流群"/><br/>
Support IDEs like Keil, IAR, RT-Thread studio and segger embedded studio to develop C moudle.
Support build tools like CMake, makeFile and Scons.
Zero dependencies, zero configuration, out-of-the-box, easy to integrated into privious C projcet.
Eazy to extern customized C moudles.
Support linux.
### (3)Syntax
Support subaggregate of python 3 standard syntax.
Support class and method define, encapsulation-inheritance-polymorphism and moudles in `.pyi ` of C module.
|Syntax|Compile-Time|Run-Time|Shell|
|---|---|---|---|
|Module Define |√|-|-|
|Module Import |√|√|√|
|Class Define |√|√|√|
|Class Inherit |√|√|√|
|Method Define |√|√|√|
|Method Override |√|√|√|
|Method Invoke |√|√|√|
|Argument Define |√|√|√|
|Argument Assignment |√|√|√|
|Object New |√|√|√|
|Object Free |√|√|√|
|Object Nest |√|√|√|
|Control flow |√|√|√|
!INCLUDE "syntax.mdpp"
### (4)Develop standard.
Readability first, nearly never use macro function and global argument.
Complete unit testes based on google test.
# 4.Both talk and show the code：
## Telegram
<img alt="tg" src="https://user-images.githubusercontent.com/88232613/158211488-0c27a35b-8ae4-4012-9954-f13cc374fdf7.jpg" width="300">
https://t.me/+JL3TZ9k-Lfg2OWE1
## E-mail: liang6516@outlook.com
# 5.Demo
The scripts in demos are in the [examples](examples) folder.
## Demo 01 GPIO
``` python
import PikaStdLib
import STM32G0
mem = PikaStdLib.MemChecker()
io1 = STM32G0.GPIO()
time = STM32G0.Time()
io1.setPin('PA8')
io1.setMode('out')
io1.enable()
io1.low()
print('hello pikascript')
print('mem.max :')
mem.max()
print('mem.now :')
mem.now()
while True:
io1.low()
time.sleep_ms(500)
io1.high()
time.sleep_ms(500)
```
## Demo 02 USART
``` python
import PikaStdLib
import STM32G0
time = STM32G0.Time()
uart = STM32G0.UART()
uart.setId(1)
uart.setBaudRate(115200)
uart.enable()
while True:
time.sleep_ms(500)
readBuff = uart.read(2)
print('read 2 char:')
print(readBuff)
```
## Demo 03 ADC
``` python
import PikaStdLib
import STM32G0
time = STM32G0.Time()
adc1 = STM32G0.ADC()
adc1.setPin('PA1')
adc1.enable()
while True:
val = adc1.read()
print('adc1 value:')
print(val)
time.sleep_ms(500)
```
## Demo 04 PWM output
``` python
import PikaStdLib
import STM32G0
time = STM32G0.Time()
pwm = STM32G0.PWM()
pwm.setPin('PA8')
pwm.setFrequency(2000)
pwm.setDuty(0.5)
pwm.enable()
while True:
time.sleep_ms(500)
pwm.setDuty(0.5)
time.sleep_ms(500)
pwm.setDuty(0.001)
```
## Demo 05 RGB
``` python
import STM32G0
import PikaPiZero
import PikaStdLib
rgb = PikaPiZero.RGB()
mem = PikaStdLib.MemChecker()
rgb.init()
rgb.enable()
print('hello 2')
print('mem used max:')
mem.max()
while True:
print('flowing')
rgb.flow()
```
## Demo 06 Snake(Need LCD)
``` python
from PikaObj import *
import PikaStdLib
import PikaPiZero
import STM32G0
# hardware init
lcd = PikaPiZero.LCD()
lcd.init()
lcd.clear('white')
key = PikaPiZero.KEY()
key.init()
time = STM32G0.Time()
x_max = 120
y_max = 150
# snake init
s = PikaPiZero.Point()
w = 9
h = 9
s.x = 50
s.y = 10
len = 0
while len < 3:
b = s
i = 0
while i < len:
b = b.next
i = i + 1
b.next = PikaPiZero.Point()
b.next.x = b.x - 10
b.next.y = b.y
b.next.prev = b
len = len + 1
# ring link
b.next = s
s.prev = b
i = 0
b = s
while i < len:
lcd.fill(b.x, b.y, w, h, 'blue')
b = b.next
i = i + 1
print('snake lengh')
print(len)
# fruit init
f = PikaPiZero.Point()
f.x = 30
f.y = 20
lcd.fill(f.x, f.y, w, h, 'green')
# memory check
mem = PikaStdLib.MemChecker()
print('mem used max:')
mem.max()
# main loop
d = 0
isUpdate = 1
isEat = 0
while True:
if isUpdate:
# isUpdate = 0
# check eat fruit
if f.x == s.x and f.y == s.y:
# have eat fruit
isEat = 1
f.x = f.x + 30
if f.x > x_max:
f.x = f.x - x_max
f.y = f.y + 30
if f.y > y_max:
f.y = f.y - y_max
lcd.fill(f.x, f.y, w, h, 'green')
# move snake by the direction
if d == 0:
x_new = s.x + 10
y_new = s.y
if x_new > x_max:
x_new = 0
elif d == 1:
x_new = s.x
y_new = s.y - 10
if y_new < 0:
y_new = y_max
elif d == 2:
x_new = s.x
y_new = s.y + 10
if y_new > y_max:
y_new = 0
elif d == 3:
x_new = s.x - 10
y_new = s.y
if x_new < 0:
x_new = x_max
if isEat:
isEat = 0
b_new = PikaPiZero.Point()
b_new.x = x_new
b_new.y = y_new
b_new.prev = s.prev
b_new.next = s
s.prev.next = b_new
s.prev = b_new
s = b_new
len = len + 1
print('snake lengh')
print(len)
print('mem used max:')
mem.max()
# drow the snake and fruit
# clear last body
lcd.fill(s.prev.x, s.prev.y, w, h, 'white')
# new body
s.prev.x = x_new
s.prev.y = y_new
# head is last body
s = s.prev
lcd.fill(s.x, s.y, w, h, 'blue')
b = s
i = 0
# scan key
key_val = key.get()
if key_val == 0:
d = 0
isUpdate = 1
elif key_val == 1:
d = 1
isUpdate = 1
elif key_val == 2:
d = 2
isUpdate = 1
elif key_val == 3:
d = 3
isUpdate = 1
```
The maximum RAM usage of these demos is only 3.56K, which is 4.56K if the 1K stack is included, and the maximum Flash usage is 30.4K. Refer to the 20K RAM and 64K Flash of STM32F103C8T6, less than 25% RAM and less than 50% Flash are used.
A quick comparison can be made between the microPython's MCU STM32F405RG and the PikaScript's MCU STM32G070CB.
## RAM resource comparison
## Flash Resource Comparison
## Reference price comparison (take the selling price of 10 pieces in Lichuang Mall on September 11, 2021 as reference)
## About the custom extern module ？
In addition to device drivers, developing custom Python modules for MCU is very easy. The following two demos are extensions of the custom module, which developed python interfaces for the ARM-2D image driver library.
## Boxes~
## Rotating suns~
# 6.Test and develop Core
## Test core in docker (recommend)
[get start with docker](https://pikadoc.readthedocs.io/en/latest/get-start_linux.html)
# ✨ Contributors
<a href="https://github.com/pikastech/pikascript/graphs/contributors">
<img src="https://contrib.rocks/image?repo=pikastech/pikascript" />
</a>
## [How to contribute](https://pikadoc.readthedocs.io/en/latest/%E5%A6%82%E4%BD%95%E5%8F%82%E4%B8%8E%E7%A4%BE%E5%8C%BA%E8%B4%A1%E7%8C%AE.html)
| Contributer | [Achivements](document/achivement.md) |
!INCLUDE "achivement_list.mdpp"
<div class="log"></div>
| Contribute log | Contributer |
| --- | --- |
!INCLUDE "contributor.mdpp"
## Star History
[](https://star-history.com/#pikastech/pikascript&Date)