ScStw/ESP32-HUB75-MatrixPanel-DMA
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Adjust default library brightness and refresh rate (memory usage).

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To avoid it being so crashy for people testing this on setups with no caps.
This commit is contained in:
mrfaptastic 2019-07-30 23:22:06 +01:00
parent de92e05c69
commit 3293b46d66
1 changed files with 4 additions and 10 deletions
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14
ESP32-RGB64x32MatrixPanel-I2S-DMA.h
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@ -179,8 +179,8 @@ class RGB64x32MatrixPanel_I2S_DMA : public Adafruit_GFX {
: Adafruit_GFX(MATRIX_WIDTH, MATRIX_HEIGHT), doubleBuffer(_doubleBuffer) { : Adafruit_GFX(MATRIX_WIDTH, MATRIX_HEIGHT), doubleBuffer(_doubleBuffer) {
backbuf_id = 0; backbuf_id = 0;
brightness = 60; // If you get ghosting... reduce brightness level. 60 seems to be the limit before ghosting on a 64 pixel wide physical panel for some panels brightness = 16; // If you get ghosting... reduce brightness level. 60 seems to be the limit before ghosting on a 64 pixel wide physical panel for some panels
min_refresh_rate = 100; // Probably best to leave as is unless you want to experiment. Framerate has an impact on brightness. min_refresh_rate = 250; // Probably best to leave as is unless you want to experiment. Framerate has an impact on brightness and also power draw - voltage ripple.
} }
@ -244,14 +244,8 @@ class RGB64x32MatrixPanel_I2S_DMA : public Adafruit_GFX {
inline void flipDMABuffer() inline void flipDMABuffer()
{ {
// Step 1. Bring backbuffer to the foreground (i.e. show it) // Flip to other buffer as the backbuffer. i.e. Graphic changes happen to this buffer (but aren't displayed until showDMABuffer())
//showDMABuffer(); backbuf_id ^=1;
// Step 2. Copy foreground to backbuffer
//matrixUpdateFrames[backbuf_id ^ 1] = matrixUpdateFrames[backbuf_id]; // copy currently being displayed buffer to backbuffer
// Step 3. Change to this new buffer as the backbuffer
backbuf_id ^=1; // set this now to the back_buffer to update (not displayed yet though)
#if SERIAL_DEBUG_OUTPUT #if SERIAL_DEBUG_OUTPUT
Serial.printf("Set back buffer to: %d\n", backbuf_id); Serial.printf("Set back buffer to: %d\n", backbuf_id);