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DEVEUI QR code display

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This commit is contained in:
Verkehrsrot 2019-09-29 23:16:36 +02:00
parent 8b42cd3e3d
commit 899c8315b4
1 changed files with 36 additions and 30 deletions
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66
src/display.cpp
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@ -86,42 +86,37 @@ void init_display(void) {
dp_printf(0, 3, 0, 0, "%dMB %s Flash",
spi_flash_get_chip_size() / (1024 * 1024),
(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "int." : "ext.");
dp_printf(0, 4, 0, 0, "Software v%s", PROGVERSION);
dp_printf(0, 5, 0, 0, "Software v%s", PROGVERSION);
// give user some time to read or take picture
delay(2000);
oledFill(0x00, 1);
#endif // VERBOSE
#if (HAS_LORA)
// generate and show DEVEUI
// generate DEVEUI as QR code and text
uint8_t buf[8];
const uint8_t *p;
os_getDevEui((u1_t *)buf);
dp_printf(0, 6, 0, 1, "LORAWAN DEVEUI: ");
for (uint8_t i = 0; i < 8; i++) {
p = buf + 7 - i;
dp_printf(i * 16, 7, 0, 1, "%02X", *p);
}
// display DEVEUI as QR code on the left
char converted[17];
sprintf(converted, "%016llX", *((uint64_t *)&buf));
oledSetContrast(20);
dp_printqr(3, 3, converted);
// display DEVEUI as plain text on the right
dp_printf(72, 0, FONT_NORMAL, 0, "LORAWAN");
dp_printf(72, 1, FONT_NORMAL, 0, "DEVEUI:");
dp_printf(80, 3, FONT_NORMAL, 0, "%4.4s", converted);
dp_printf(80, 4, FONT_NORMAL, 0, "%4.4s", converted + 4);
dp_printf(80, 5, FONT_NORMAL, 0, "%4.4s", converted + 8);
dp_printf(80, 6, FONT_NORMAL, 0, "%4.4s", converted + 12);
// give user some time to read or take picture
delay(3000);
oledSetContrast(255);
oledFill(0x00, 1);
// we need to invert display to show QR code
#ifndef DISPLAY_FLIP
oledInit(OLED_128x64, ANGLE_0, true, -1, -1, 400000L);
#else
oledInit(OLED_128x64, ANGLE_FLIPY, true, -1, -1, 400000L);
#endif
// print DEVEUI as QR code
const char *eui = reinterpret_cast<const char *>(buf);
dp_printqr(3, 3, eui);
delay(300000);
oledFill(0x00, 1);
// display back to normal
#ifndef DISPLAY_FLIP
oledInit(OLED_128x64, ANGLE_0, true, -1, -1, 400000L);
#else
oledInit(OLED_128x64, ANGLE_FLIPY, true, -1, -1, 400000L);
#endif
#endif // HAS_LORA
oledPower(cfg.screenon); // set display off if disabled
@ -342,13 +337,24 @@ void dp_printf(int x, int y, int font, int inv, const char *format, ...) {
void dp_printqr(int offset_x, int offset_y, const char *Message) {
uint8_t qrcodeData[qrcode_getBufferSize(QR_VERSION)];
qrcode_initText(&qrcode, qrcodeData, QR_VERSION, ECC_HIGH, Message);
// draw QR code
for (int y = 0; y < qrcode.size; y++)
for (int x = 0; x < qrcode.size; x++)
if (qrcode_getModule(&qrcode, x, y)) // "black"
if (!qrcode_getModule(&qrcode, x, y)) // "black"
oledfillRect(x * QR_SCALEFACTOR + offset_x,
y * QR_SCALEFACTOR + offset_y, QR_SCALEFACTOR,
QR_SCALEFACTOR, true);
oledfillRect(64, 0, 64, 64, true); // clear white space beneath qr code
// draw horizontal frame lines
oledfillRect(0, 0, qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y,
true);
oledfillRect(0, qrcode.size * QR_SCALEFACTOR + offset_y,
qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y, true);
// draw vertical frame lines
oledfillRect(0, 0, offset_x, qrcode.size * QR_SCALEFACTOR + 2 * offset_y,
true);
oledfillRect(qrcode.size * QR_SCALEFACTOR + offset_x, 0, offset_x,
qrcode.size * QR_SCALEFACTOR + 2 * offset_y, true);
}
void oledfillRect(int x, int y, int width, int height, int bRender) {