Chiang Mai Makerfaire

(c) 2016 Jonas S Karlsson

Agenda

ESP8266

live

lisp

ESP8266

Single Chip Computer

~40KB RAM

512-4MB Flash

10RMB == 2USD

IoT

live

Lua

interactive

easy start

one page of code

1 function = 600 bytes!

only have 20KB...

Lisp

live interactive

command line

program == data

I'll

teach

You

Lisp!

Number

String

"Hello World!"

Symbol

define

x

+

nil

( )

Pair

(3 . 4)

List

(3 . nil )

same as

(3)

List

(1 .

(2 .

(3 . ()

)

)

)

List

(1 2 3)

call a function

(+ 3 4)

call 2 functions

read/write pin 4

(in 4)

(out 4 1)

double

(define (double n)

(+ n n)

)

call it

(double 7)

if

(if (= 3 3)

"is equal"

"not equal"

)

loop

(define (loop n)

(if (< n 1) nil

(cons n

(loop (- n 1)) ) ) )

call it

>(loop 5)

(5 4 3 2 1)