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TinyGo tinygo.org Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 1

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TinyGo A go compiler for small places Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 2

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Hello World Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 3

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Microcontrollers Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 4

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Micro:bit microbit.org Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 5

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Micro:bit 4 Nordic nRF51822 – 16 MHz 32-bit ARM Cortex-M0 microcontroller, 256 KB flash memory, 16 KB static ram, 2.4 GHz Bluetooth low energy wireless networking. 4 NXP/Freescale KL26Z – 48 MHz ARM Cortex-M0+ core microcontroller, that includes a full- speed USB 2.0 On-The-Go (OTG) controller, used as a communication interface between USB and main Nordic microcontroller. 4 NXP/Freescale MMA8652 – 3-axis accelerometer sensor via I²C-bus. 4 NXP/Freescale MAG3110 – 3-axis magnetometer sensor via I²C-bus (to act as a compass and metal detector). 4 MicroUSB connector, battery connector, 25-pin edge connector. 4 Display consisting of 25 LEDs in a 5×5 array.[13] 4 Three tactile pushbuttons (two for applications, one for reset). Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 6

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How to get micro:bit? Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 8

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TinyGo compiler architecture 4 GO SSA 4 LLVM IR Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 11

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Is tinyGo tiny? Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 12

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Hello World in IOT Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 13

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package main import ( "machine" "time" ) const led = machine.P1 func main() { led.Configure(machine.PinConfig{Mode: machine.PinOutput}) for { led.Low() time.Sleep(time.Second) led.High() time.Sleep(time.Second) } } Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 14

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TinyGO and WASM 4 Johan Brandhorst - Get Going with WebAssembly Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 15

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RISC-V 4 HiFive1 Rev B board 4 https://play.tinygo.org/ Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 17

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DEMOS 4 https://github.com/abtris/tinygo-talk-demos Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 18

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References 4 Ron Evans talks on 4 Gophercon 2019 4 Fosdem 2019 4 Ayke van Laëthem blog Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 19

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Warning new ESP8266/ESP32 WiFi vulnerabilities #infosec #IoT Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 20

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Q & A Or ask on twitter: @abtris Ladislav Prskavec - Golang Prague #4, 4th Sep 2019 21