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more efficient display update

This commit is contained in:
interfisch 2021-03-05 20:11:19 +01:00
parent 81821be685
commit 2457d6ee51
1 changed files with 8 additions and 2 deletions
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10
src/main.cpp
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@ -28,7 +28,9 @@ uint8_t display_data[] = { 0xff, 0xff, 0xff, 0xff };
uint8_t display_blank[] = { 0x00, 0x00, 0x00, 0x00 }; uint8_t display_blank[] = { 0x00, 0x00, 0x00, 0x00 };
unsigned long last_displayupdate=0; unsigned long last_displayupdate=0;
#define DISPLAYUPDATEINTERVAL 100 #define DISPLAYUPDATEINTERVAL 100 //maximum time to update display
#define DISPLAYUPDATEINTERVAL_MIN 10 //minimum display update time
bool update_display=true;
#include "HX711.h" #include "HX711.h"
@ -162,6 +164,7 @@ void loopHandler() {
if (spread<MAXSPREAD_TARE) { //if reading is stable if (spread<MAXSPREAD_TARE) { //if reading is stable
if (weight_filtered<weight_tare) { //new min if (weight_filtered<weight_tare) { //new min
weight_tare=weight_filtered; weight_tare=weight_filtered;
update_display=true;
Serial.print("new tare="); Serial.println(weight_tare,3); Serial.print("new tare="); Serial.println(weight_tare,3);
} }
} }
@ -169,6 +172,7 @@ void loopHandler() {
if (spread<MAXSPREAD_MEASURE) { //if reading is stable if (spread<MAXSPREAD_MEASURE) { //if reading is stable
if (weight_filtered>weight_max) { //new max if (weight_filtered>weight_max) { //new max
weight_max=weight_filtered; weight_max=weight_filtered;
update_display=true;
Serial.print("new max="); Serial.println(weight_max,3); Serial.print("new max="); Serial.println(weight_max,3);
} }
} }
@ -177,6 +181,7 @@ void loopHandler() {
if (!weight_sent) { if (!weight_sent) {
if (weight_max-weight_tare>MIN_WEIGHT_DIFFERENCE) { if (weight_max-weight_tare>MIN_WEIGHT_DIFFERENCE) {
sendWeight(weight_max-weight_tare); sendWeight(weight_max-weight_tare);
update_display=true;
} }
} }
} }
@ -206,8 +211,9 @@ void loopHandler() {
powerOff(); powerOff();
} }
if (loopmillis > last_displayupdate + DISPLAYUPDATEINTERVAL) { if ( (loopmillis > last_displayupdate + DISPLAYUPDATEINTERVAL) | (update_display && (loopmillis > last_displayupdate + DISPLAYUPDATEINTERVAL_MIN) )) {
last_displayupdate=loopmillis; last_displayupdate=loopmillis;
update_display=false; //reset flag
displayNumber(weight_current); displayNumber(weight_current);
} }