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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

LDR Pre MkII - LDR volume control and I/O switching
LDR Pre MkII - LDR volume control and I/O switching
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Old 13th July 2019, 01:09 PM   #221
sabre66 is offline sabre66  Canada
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Quote:
Originally Posted by zdr View Post
Scl and sda are pulled to vcc with 2k2 resistors so they should be around 5v. Make sure you modified oled without any errors. It seems that scl and sda are messing with i2c bus preventing arduino from booting.
That what I was thinking. The modifications of the old OLED seem ok so I'm just going to wait for the new oled. Until then I'm going to wine country.
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Old Yesterday, 07:52 AM   #222
zdr is offline zdr  Belgium
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Quote:
Originally Posted by sabre66 View Post
That what I was thinking. The modifications of the old OLED seem ok so I'm just going to wait for the new oled. Until then I'm going to wine country.
You can try putting a cap of around 1000uF on D+ line, in case you have garbage injected from OLED.
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Old Yesterday, 07:53 AM   #223
zdr is offline zdr  Belgium
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Another display that works with this project, requires no additional components to be soldered and cheapest I could find:

White 2.42" 2.42 inch LCD Screen 12864 OLED Display Module IIC I2C SPI Serial for C51 STM32 SSD1309-in Integrated Circuits from Electronic Components & Supplies on Aliexpress.com | Alibaba Group
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