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Candidate for mitchell camera firmware that does not impede the takeup when timed exposure times are delaying between shutter opening and closing

This commit is contained in:
Matt McWilliams 2026-04-25 08:46:31 -04:00
parent 0d641b3f67
commit 3eea1e86cf
1 changed files with 57 additions and 19 deletions
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76
ino/mcopy_mitchell_camera/mcopy_mitchell_camera.ino
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@ -18,11 +18,18 @@ volatile long now;
volatile long exposureAvg = 250;
volatile String exposureString;
volatile long frameStart = 0;
volatile long frameHalf = 0;
volatile long framePause = 0;
volatile long frameMs = 0;
const long timedExposureCutoff = 250; //180 deg
volatile String timedExposureString;
volatile long timedExposureTarget = -1;
volatile long timedExposureAvg = -1;
volatile long timedExposureDelayEnd = -1;
volatile bool direction = true;
//volatile bool directionSwitch = true; //true forward, false backward
@ -57,7 +64,11 @@ void setup () {
void loop () {
now = millis();
cmdChar = mc.loop();
cmd(cmdChar);
if (timedExposureDelayEnd > 0) {
camera_timed_watch();
} else {
cmd(cmdChar);
}
cam.loop();
tu.loop();
//buttons();
@ -110,33 +121,28 @@ void camera_direction (boolean state) {
}
void camera () {
long start = millis();
long half;
long pause;
long ms;
uint32_t i;
frameStart = millis();
if (cam.isOpened()) {
mc.log("Opened, closing...");
cam.toClose();
start = millis();
frameStart = millis();
}
if (timedExposureTarget > -1) {
half = exposureAvg / 2; //assume a 180 shutter
pause = timedExposureTarget - half;
mc.log(String(pause) + "ms vs. " + String(exposureAvg) + "ms");
if (pause < half) {
frameHalf = exposureAvg / 2; //assume a 180 shutter
framePause = timedExposureTarget - frameHalf;
mc.log(String(framePause) + "ms vs. " + String(exposureAvg) + "ms");
if (framePause < frameHalf) {
//mc.log("Running normal frame, timed too short");
i = cam.frame();
mc.log("Steps: " + String(i));
} else {
//mc.log("Running timed frame");
mc.log("Running timed frame");
i = cam.toOpen();
mc.log("Steps: " + String(i));
delay(pause);
i = cam.toClose();
mc.log("Steps: " + String(i));
timedExposureDelayEnd = millis() + framePause;
return;
}
} else{
//mc.log("Running normal frame");
@ -144,16 +150,48 @@ void camera () {
mc.log("Steps: " + String(i));
}
ms = millis() - start;
frameMs = millis() - frameStart;
if (timedExposureTarget > -1) {
updateTimedAvg(ms, half);
updateTimedAvg(frameMs, frameHalf);
} else {
updateAvg(ms);
updateAvg(frameMs);
}
mc.log("camera()");
mc.log(String(ms) + "ms");
mc.log(String(frameMs) + "ms");
mc.confirm(mc.CAMERA);
if (direction) {
tu.forward();
} else {
tu.backward();
}
}
void camera_timed_watch () {
if (millis() >= timedExposureDelayEnd) {
camera_timed_end();
}
}
void camera_timed_end () {
uint32_t i;
timedExposureDelayEnd = -1;
cam.toClose();
mc.log("Steps: " + String(i));
frameMs = millis() - frameStart;
if (timedExposureTarget > -1) {
updateTimedAvg(frameMs, frameHalf);
} else {
updateAvg(frameMs);
}
mc.log("camera()");
mc.log(String(frameMs) + "ms");
mc.confirm(mc.CAMERA);
if (direction) {