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QR display of DEVEUI (experimental)

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This commit is contained in:
Verkehrsrot 2019-09-29 16:46:48 +02:00
parent 53f09fd668
commit c6c455b922
2 changed files with 47 additions and 16 deletions
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5
include/display.h
View File

@ -2,12 +2,15 @@
#define _DISPLAY_H
#include "cyclic.h"
#include "qrcode.h"
extern uint8_t DisplayIsOn;
void init_display(void);
void refreshTheDisplay(bool nextPage = false);
void init_display(void);
void draw_page(time_t t, uint8_t page);
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);
void oledfillRect(int x, int y, int width, int height, int bRender);
#endif

58
src/display.cpp
View File

@ -23,12 +23,9 @@ Display-Mask (128 x 64 pixel):
y = LMIC event message; ab = payload queue length
FONTS in ss_oled.cpp:
FONT_SMALL: 6px = 21 chars / line
FONT_NORMAL: 8px = 16 chars / line
FONT_STRETCHED: 8 chars / line
FONT_LARGE: 8 chars / line
FONT_SMALL: 6x8px = 21 chars / line
FONT_NORMAL: 8x8px = 16 chars / line
FONT_STRETCHED: 16x32px = 8 chars / line
*/
@ -37,15 +34,26 @@ FONT_LARGE: 8 chars / line
#include <ss_oled.h>
#include <esp_spi_flash.h> // needed for reading ESP32 chip attributes
// local Tag for logging
static const char TAG[] = __FILE__;
// settings for oled display library
#define DISPLAY_PAGES (4) // number of display pages
#define USE_BACKBUFFER // for display library
// settings for qr code generator
#define ELEMENT_SIZE 3
#define QR_VERSION 1
#define LOCK_VERSION 1
// helper arry for converting month values to text
const char *printmonth[] = {"xxx", "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
uint8_t DisplayIsOn = 0;
QRCode qrcode;
void init_display(void) {
// block i2c bus access
@ -78,23 +86,29 @@ 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);
#endif // VERBOSE
#if (HAS_LORA)
uint8_t buf[34];
// generate and show DEVEUI
uint8_t buf[8];
const uint8_t *p;
os_getDevEui((u1_t *)buf);
dp_printf(0, 5, 0, 0, "DEVEUI:");
dp_printf(0, 6, 0, 0, "DEVEUI:");
for (uint8_t i = 0; i < 8; i++) {
p = buf + 7 - i;
dp_printf(i * 16, 6, 0, 0, "%02X", *p);
dp_printf(i * 16, 7, 0, 0, "%02X", *p);
}
#endif // HAS_LORA
dp_printf(0, 4, 0, 0, "Software v%s", PROGVERSION);
delay(3000);
oledFill(0x00, 1);
oledFill(0, 1);
// print DEVEUI as QR code
const char *eui = reinterpret_cast<const char *>(buf);
dp_printqr(0, 0, eui); // to come: we need inverted display for QR code
#endif // HAS_LOR
delay(3000);
oledFill(0x00, 1);
oledPower(cfg.screenon); // set display off if disabled
I2C_MUTEX_UNLOCK(); // release i2c bus access
@ -281,8 +295,7 @@ void draw_page(time_t t, uint8_t page) {
} // draw_page
// display print helper function
// display print helper functions
void dp_printf(int x, int y, int font, int inv, const char *format, ...) {
char loc_buf[64];
char *temp = loc_buf;
@ -311,4 +324,19 @@ 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(1)];
qrcode_initText(&qrcode, qrcodeData, QR_VERSION, ECC_HIGH, Message);
for (int y = 0; y < qrcode.size; y++)
for (int x = 0; x < qrcode.size; x++)
if (qrcode_getModule(&qrcode, x, y)) // BLACK
oledfillRect(x * ELEMENT_SIZE + offset_x, y * ELEMENT_SIZE + offset_y,
ELEMENT_SIZE, ELEMENT_SIZE, true);
}
void oledfillRect(int x, int y, int width, int height, int bRender) {
for (int xi = x; xi < x + width; xi++)
oledDrawLine(xi, y, xi, y + height - 1, bRender);
}
#endif // HAS_DISPLAY