The procedure is different for ESP8266 and ESP32 platforms.
I☬ and HW SPI based displays with support in u8g2 can be enabled. Visit the u8g2 homepage for technical details. Refer to graphics_a to get an impression how this is achieved with Lua code. This object provides all of u8g2's methods to control the display.
#St7920 code example how to#
The communication interface has to be initialized up front, refer to the examples below on how to do this.ĭisp = u8g2.ssd1306_i2c_128圆4_noname(id, sla)ĭisp = u8g2.ssd1306_128圆4_noname(bus, cs, dc, res) Based on the u8g2 class, you create an object for your display type. The Lua bindings for this library closely follow u8g2's object oriented C++ API.
#St7920 code example full#
This integration uses full "RAM" memory buffer without picture loop and calls u8g2's begin() internally when creating a display object. The NodeMCU firmware supports the following displays in I☬ and SPI mode: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)ĪRISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IFĪDVISED OF THE POSSIBILITY OF SUCH DAMAGE. LOSS OF USE, DATA, OR PROFITS OR BUSINESS INTERRUPTION) HOWEVERĬAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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#St7920 code example software#
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