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Member #423228

Member Since: March 27, 2013

Country: United States

  • I bought this to get text to display on a monitor. I’m having two arduinos talk to each other through rf transmitters/receivers. I receive characters perfectly fine but I cannot get the characters I receive to display on the screen. I think it has to do with pointers and type conversions but I am not sure. Does anyone have any recommendations? My code to display in void loop() is:

    uint8_t buf[VW_MAX_MESSAGE_LEN]; uint8_t buflen = VW_MAX_MESSAGE_LEN;

    if (vw_get_message(buf, &buflen)) // Non-blocking { int i; int z=1; digitalWrite(led_pin, HIGH); // Flash a light to show received good message // Message with a good checksum received, print it. for (i = 0; i < buflen; i++) { char myChar = buf[i]; drawstr(atxy(i,z), myChar); } z++; digitalWrite(led_pin, LOW); }

    and the method drawstr is: static void drawstr(uint16_t addr, const char s) { while (s) { uint16_t w = pgm_read_word(cp437_pic + 2 * *s); GD.wr(addr, lowByte(w)); GD.wr(addr + 64, highByte(w)); s++, addr++; } }

    and a drawstr input that works is: drawstr(atxy(1, 1), “0)”);

    Thanks in advance for any help!

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