botletics / reflowduino Goto Github PK

Hi there botletics, ive been try your ESP32 version code for do it on my own, but i cant find some libraries that you used in ESP32.ino, they are:
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEUtils.h>
#include <BLE2902.h>

So may i ask you to addd these in to the project folder? Thanks!

Just curious as to what software was used to create the PCB, and SCH files?

wanted to build a reflow oven so found this code that runs on esp32 and tried compiling it, only to find out i met with a error

Hello botletics

I am using the ESP32 Version to try to drive a Halogen Floodlight as a mini Reflow Oven. Most important point for me is, that I can easily take it with me, should I need to.

My problem with that approach is, that it is way too fast. I basically get no soak phase, as the Halogen Floodlight heats up so quick. The whole process until it reaches the peak temperature takes about 30 seconds, which is way too short.

Is there a chance You can test that, and maybe give me a hint what I can do to actually have useable soak and reflow phases?

Thanks in advance.

Best regards

Reaper2u

I think adding some documentation for adding ESP32 modules and standalone displays would be great. There should be enough IO pins left for both, AFAIK.

I've assembled the Reflowduino32 and Sidekick module and connected them to my toaster oven. However, when I start a reflow sequence the toaster oven does not receive power.

I modified the simple blink program to test whether the Sidekick and ESP32 backpack modules were working:

#define relay 13

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(relay, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(relay, HIGH);
  delay(3000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(relay, LOW);
  delay(3000);                       // wait for a second
}

This code works fine and I can see my oven come on and go off with the built in LED.

When I flash back to the Reflowduino_ESP32_Demo code, nothing happens with the oven. The Bluetooth connection and thermocouple reporting work fine. While measuring pin 13 with a voltmeter, I do not see it go high while the process is running.

It's possible that I've overlooked something very simple, but I can't think of anything off the top of my head.

Thanks

Your units for rate are Deg per second not per ms. So you calculate projected time in seconds but then add it to mills();

should it not be

t_final = (T_preheat - T_start) /  (preheat_rate / 1000)  + t_start;

Correct me if i'm wrong.