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Topics, questions, and discussion around Displaytech and HDP Power products

Kyle replied 2 days ago
Power Supplies

Power Supply and CB Report

We are interested in using a power supply of the HDP12-MD series for a medical device we are certifying. Even if the power supply is branded and full of certifications, we do not find references or the possibility of obtaining the CB Report a document necessary to proceed with the certification of our CB Report.

How can I get the CB report of the HDP12-MD?

Thank you

Rohith replied 2 days ago

DisplayTech LCD graphic Monochrome Display unable to initialize


we have ordered a few samples of DisplayTech LCD from digikey. This is a 128x240 resolution display that works on both SPI and Parallel interfaces. we chose a SPI interface and connected IF pins to GND per the datasheet.

The display uses an ST7529 IC and I am currently following its datasheet to write a program on Arduino using its SPI interface to initialize this display.

I can verify on the scope that the SPI commands are going into the display in the right order, MSB first but I dont see initialization happening. The way we are verifying it... (More)

Sarah updated 4 days ago

Display disappears without backlight?

Hi, my company is using a DT022CTFT 2.2" TFT Module in a telephone application. When we turn off the backlight to the display, we no longer see any data on the display. Is this expected operation? In our old display, when the backlight was turned off, the data that was displayed was still present on the display, but was just very dim. We are trying to understand why there is a difference. So, if you turn off the backlight, does the display cease showing any display data?

Paulo replied a month ago
Character LCDs
Paulo Duarte
Microcontroller Developer

i have got a doubt DisplayTech 204B LCD Module Initialization Process Please Explain or Tips?

i have got a doubt DisplayTech 204B LCD Module Initialization Process Please Explain or Tips? other LCDs have a delay where is Yellow Highlighted