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makerbase-mks / MKS-DLC32

MKS DLC32 motherboard kit, which is an offline engraving master control kit developed for desktop engraving machines. The hardware is equipped with a 32-bit high-speed ESP32 module, integrated WIFI function, and directly drives a 3.5-inch touch color screen; it can realize fast engraving and WEB web pages. Control, mobile phone APP control and other functions.
https://www.aliexpress.com/item/1005003183498253.html?spm=a2g0o.store_pc_home.productList_8356958.pic_0
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M7 and M9 inverted #423

Open mscart opened 9 months ago

mscart commented 9 months ago

Hi there. I try to use the SCL pin to command a 5 V relay to stand and stop air assist. but when i power the board the SCL pin is High and the relay si on.

when i try the m7 command the relay is off and with m9 the relay is on. m9 should off the relay and m7 should start. what can i do ?

i use this firmware : /TS35/Laser/Normal/Board_V2.0/V2.0.8_H35_20220105_N.bin

Babaika1987 commented 9 months ago

Здравствуйте mscart. Я решил данную проблему так, собрал схему смотрите картину 222 Прошивка https://github.com/makerbase-mks/MKS-DLC32/blob/main/firmware/TS35/Laser/Normal/Board_V2.0/V2.30_H35_2022_1223_N_ZX_001.bin

mscart commented 9 months ago

thank you ... i will try it

ElectricBluefishProductionsInc commented 8 months ago

I am having a similar issue. Has anyone found that an optocoupler solves the issue presented above?

mscart commented 7 months ago

I am having a similar issue. Has anyone found that an optocoupler solves the issue presented above?

not yet i don't find in romania that integrated circuit.