Super simple ESP32 heating table V2

I copied the heating table on the site (https://oshwhub.com/dhx233/pcb-heng-wen-jia-re-tai) and made some modifications based on my own inventory:
I changed the main control ESP32, HLK recently cleared it In stock, I picked up a few pieces
and changed them to use MAX6675 for temperature measurement. I had a thermocouple module on hand, equipped with an exposed thermocouple. In this way, there is no need to worry about inaccurate temperature measurement.
I replaced the ACDC power module with the one I already had. I also purchased the NTC from Uxin
to measure the board temperature.
I changed the LAN to MQTT, added Homeassistant control
and added an indicator buzzer. , the buzzer is drawn wrong, I don’t have a buzzer with a 5cm distance on hand, and I haven’t soldered
the fan yet and I haven’t soldered
the code yet: https://github.com/lkisme/kk-heater
About PCB:
V1 wants to use bare metal directly. The design of the screen is not proofed.
V2 was proofed. After the proofing came back, I found that the screen's power cord network was wrong, so I used flying cables to solve it. The PCB in Engineering has modified this.
V3 wants to put the MAX6675 directly on the board without using plug-in modules. Since the finished product is already available, it has not been prototyped and verified.
Reflow profile: brewing coffee
from front view