mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-07-26 10:38:41 +00:00
Scott Feldman
142 lines
2.9 KiB
Go
142 lines
2.9 KiB
Go
// This example runs on wioterminal. It gets an URL using http.Get() and
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// displays the output on the wioterminal LCD screen.
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//
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// Note: It may be necessary to increase the stack size when using "net/http".
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// Use the -stack-size=4KB command line option.
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//go:build wioterminal
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// +build: wioterminal
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package main
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import (
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"fmt"
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"image/color"
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"io"
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"log"
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"machine"
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"net/http"
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"net/url"
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"strings"
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"time"
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"tinygo.org/x/drivers"
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"tinygo.org/x/drivers/ili9341"
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"tinygo.org/x/drivers/rtl8720dn"
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"tinygo.org/x/tinyfont/proggy"
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"tinygo.org/x/tinyterm"
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)
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var (
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ssid string
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pass string
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)
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var (
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netcfg = rtl8720dn.Config{
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Ssid: ssid,
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Passphrase: pass,
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En: machine.RTL8720D_CHIP_PU,
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Uart: machine.UART3,
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Tx: machine.PB24,
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Rx: machine.PC24,
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Baudrate: 614400,
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}
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netdev = rtl8720dn.New(&netcfg)
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display = ili9341.NewSPI(
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machine.SPI3,
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machine.LCD_DC,
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machine.LCD_SS_PIN,
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machine.LCD_RESET,
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)
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backlight = machine.LCD_BACKLIGHT
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terminal = tinyterm.NewTerminal(display)
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black = color.RGBA{0, 0, 0, 255}
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white = color.RGBA{255, 255, 255, 255}
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red = color.RGBA{255, 0, 0, 255}
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blue = color.RGBA{0, 0, 255, 255}
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green = color.RGBA{0, 255, 0, 255}
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font = &proggy.TinySZ8pt7b
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)
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func notify(e drivers.NetlinkEvent) {
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switch e {
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case drivers.NetlinkEventNetUp:
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fmt.Println("Wifi connection UP")
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fmt.Fprintf(terminal, "Wifi connection UP")
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case drivers.NetlinkEventNetDown:
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fmt.Println("Wifi connection DOWN")
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fmt.Fprintf(terminal, "Wifi connection DOWN")
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}
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}
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func main() {
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machine.SPI3.Configure(machine.SPIConfig{
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SCK: machine.LCD_SCK_PIN,
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SDO: machine.LCD_SDO_PIN,
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SDI: machine.LCD_SDI_PIN,
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Frequency: 40000000,
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})
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display.Configure(ili9341.Config{})
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display.FillScreen(black)
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backlight.Configure(machine.PinConfig{machine.PinOutput})
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backlight.High()
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terminal.Configure(&tinyterm.Config{
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Font: font,
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FontHeight: 10,
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FontOffset: 6,
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})
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fmt.Fprintf(terminal, "Connecting to %s...\r\n", ssid)
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netdev.NetNotify(notify)
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if err := netdev.NetConnect(); err != nil {
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log.Fatal(err)
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}
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name := "John Doe"
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occupation := "gardener"
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params := "name=" + url.QueryEscape(name) + "&" +
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"occupation=" + url.QueryEscape(occupation)
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path := fmt.Sprintf("https://httpbin.org/get?%s", params)
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cnt := 0
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for {
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fmt.Fprintf(terminal, "Getting %s\r\n\r\n", path)
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resp, err := http.Get(path)
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if err != nil {
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fmt.Fprintf(terminal, "%s\r\n", err.Error())
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time.Sleep(10 * time.Second)
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continue
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}
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fmt.Fprintf(terminal, "%s %s\r\n", resp.Proto, resp.Status)
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for k, v := range resp.Header {
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fmt.Fprintf(terminal, "%s: %s\r\n", k, strings.Join(v, " "))
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}
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fmt.Fprintf(terminal, "\r\n")
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body, err := io.ReadAll(resp.Body)
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fmt.Fprintf(terminal, string(body))
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resp.Body.Close()
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cnt++
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fmt.Fprintf(terminal, "-------- %d --------\r\n", cnt)
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time.Sleep(10 * time.Second)
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}
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}
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