YuruC3/MD1200
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Also propably needs a MAX2323 to work.

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YuruC3
2025-05-10 10:19:10 +02:00
parent 8525da4004
commit a17eb70ce0
5 changed files with 67 additions and 19 deletions
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219
STM32_CONTROL/versions/main.cpp Normal file
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@@ -0,0 +1,219 @@
#include <Arduino.h>
#include <HardwareSerial.h>
// VARS
const int MD1200BAUDS = 38400; // From what I've read it is always 38400
//const int EPYSLEEPY = 600000; / 10 minutes
const int EPYSLEEPY = 300000; // 5 minutes
//const int EPYSLEEPY = 150000; // 2,5 minutes
HardwareSerial MDSerial(PA3, PA2); // Rx Tx
HardwareSerial DeBug(PA10, PA9); // Rx Tx
// HardwareSerial DeBug(USART1); // use USART1
// declarations
int getTemp();
int setFanTrsh(int);
void setup() {
// Setup connection to MD1200
// MDSerial because we're using RX/TX pins
MDSerial.begin(MD1200BAUDS);
// Just debug
DeBug.begin(9600);
DeBug.println("skibidi");
delay(15000);
}
void loop() {
DeBug.println("Starting loop");
int fanPercnt = getTemp();
if (fanPercnt < 10) {
DeBug.println("Executing setFanTrsh");
setFanTrsh(fanPercnt);
}
/*
check temperature and
set fan speed every X minutes
*/
delay(EPYSLEEPY);
DeBug.println("Ending loop");
}
// Get current temperature
int getTemp() {
DeBug.println("Getting Temperature");
int bp1 = 0;
int bp2 = 0;
int exp0 = 0;
int exp1 = 0;
int simm0 = 0;
int simm1 = 0;
String MD1200output;
MDSerial.println("_temp_rd");
// wait for MD1200 to answer
delay(30);
DeBug.println("getTemp logic start");
while (MDSerial.available()) {
MD1200output = MDSerial.readStringUntil('\n');
// Check backplane 1
if (MD1200output.startsWith("BP_1")) {
// check index number of =
int eq = MD1200output.indexOf('=');
// check index number of c
int c = MD1200output.indexOf('c');
// check if both exists
if (eq != -1 && c != -1) {
/*
take value between "= " and "c".
NOTICE that eq + 1 is there because in
"BP_1[2] = 25c" there is a space between = and 25.
*/
bp1 = MD1200output.substring(eq + 1, c).toInt();
}
}
// Check backplane 2
if (MD1200output.startsWith("BP_2")) {
int eq = MD1200output.indexOf('=');
int c = MD1200output.indexOf('c');
if (eq != -1 && c != -1) {
bp2 = MD1200output.substring(eq + 1, c).toInt();
}
}
// Uncomment if you want to also get temperature for expanders
/*
// Check expander 0
if (MD1200output.startsWith("EXP0")) {
int eq = MD1200output.indexOf('=');
int c = MD1200output.indexOf('c');
if (eq != -1 && c != -1) {
exp0 = MD1200output.substring(eq + 1, c).toInt();
}
}
// Check expander 1
if (MD1200output.startsWith("EXP1")) {
int eq = MD1200output.indexOf('=');
int c = MD1200output.indexOf('c');
if (eq != -1 && c != -1) {
exp1 = MD1200output.substring(eq + 1, c).toInt();
}
}
// Check controller 0
if (MD1200output.startsWith("SIM0")) {
int eq = MD1200output.indexOf('=');
int c = MD1200output.indexOf('c');
if (eq != -1 && c != -1) {
simm0 = MD1200output.substring(eq + 1, c).toInt();
}
}
// Check controller 1
if (MD1200output.startsWith("SIM1")) {
int eq = MD1200output.indexOf('=');
int c = MD1200output.indexOf('c');
if (eq != -1 && c != -1) {
simm1 = MD1200output.substring(eq + 1, c).toInt();
}
}
*/
// Stop when prompt returns
if (MD1200output.endsWith(">")) {
DeBug.println("getTemp got all temp info");
break;
}
}
// Do (BP_1 + BP_2) / 2 to get the average of backplane
if (bp1 != -1 && bp2 != -1) {
int bpAvg = (bp1 + bp2) / 2;
// define default
int outPrcntg = 21;
// a
DeBug.println("getTemp choosing fan speed");
switch (bpAvg) {
case 23:
outPrcntg = 21;
break;
// Minimum is 21 (akhsually 20)
case 25:
outPrcntg = 23;
break;
case 27:
outPrcntg = 24;
break;
case 29:
outPrcntg = 26;
break;
case 31:
outPrcntg = 27;
break;
case 33:
outPrcntg = 30;
break;
case 35:
outPrcntg = 34;
break;
case 37:
outPrcntg = 38;
break;
/*
I don't wan't to become deaf so max is 40.
*/
default:
return -1;
DeBug.println("getTemp error returning -1");
}
DeBug.println("getTemp return " + String(outPrcntg));
return outPrcntg;
} else {
return -1; // failed to read temp
}
/*
BP_1[2] - Back plane, maybe left
BP_2[3] - Back plane, maybe right
SIM0[0] - Controller A
SIM1[1] - Controller B
EXP0[4] - Expander 0
EXP1[5] - Expander 1
AVG - average of all sensors
*/
}
// take percentage as int and set it.
int setFanTrsh(int fanTrshInp) {
String outputStatement = "set_speed " + String(fanTrshInp);
DeBug.println("Sending " + outputStatement + " to MD1200");
if (MDSerial.println(outputStatement)) {
return 1;
}
else {
return -1;
}
}

14
STM32_CONTROL/versions/main.dht22.cpp
View File

@@ -2,6 +2,7 @@
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>
#include <HardwareSerial.h>
// -------------------------------------------------------------
// DHT PreConfiguration
@@ -22,6 +23,7 @@ const int MD1200BAUDS = 38400; // From what I've read it is always 38400
//const int EPYSLEEPY = 600000; / 10 minutes
const int EPYSLEEPY = 300000; // 5 minutes
//const int EPYSLEEPY = 150000; // 2,5 minutes
HardwareSerial MDSerial(PA3, PA2); // Rx Tx
// declarations
int getTemp();
@@ -30,8 +32,8 @@ float dhtRead();
void setup() {
// Setup connection to MD1200
// Serial1 because we're using RX/TX pins
Serial1.begin(MD1200BAUDS);
// MDSerial because we're using RX/TX pins
MDSerial.begin(MD1200BAUDS);
// Just debug
Serial.begin(9600);
@@ -66,13 +68,13 @@ int getTemp() {
int simm1 = 0;
String MD1200output;
Serial1.println("_temp_rd");
MDSerial.println("_temp_rd");
// wait for MD1200 to answer
delay(30);
while (Serial1.available()) {
MD1200output = Serial1.readStringUntil('\n');
while (MDSerial.available()) {
MD1200output = MDSerial.readStringUntil('\n');
// Check backplane 1
if (MD1200output.startsWith("BP_1")) {
@@ -221,7 +223,7 @@ int setFanTrsh(int fanTrshInp) {
Serial.println("Sending " + outputStatement + " to MD1200");
if (Serial1.println(outputStatement)) {
if (MDSerial.println(outputStatement)) {
return 1;
}
else {