Reply to thread

Message

The limits depend partly on the power and current draw than on the size of the LCD, but I think it would have problems powering the backlight of most 5" LCDs. Maximum rated current output is 40mA per pin on the ATtiny and even then it's best to not get close to that amount to prevent hardware damage. Also, since a 5" LCD is likely to be full-color and at a higher resolution (at least QVGA) it's rare to have a low-powered processor with few pins control a display like that. It's better to go with one of the more capable AVR processors, or a Raspberry Pi (the Pi Zero would be enough).

Wow, that really opens up my options, doesn't it. I wonder what drove down the price. It will be a big tougher to install, what with the OLED circuit that I will also have to make and put in there, but that's part of the challenge of SFF isn't it

<blockquote data-quote="CC Ricers" data-source="post: 11974" data-attributes="member: 130">The limits depend partly on the power and current draw than on the size of the LCD, but I think it would have problems powering the backlight of most 5&quot; LCDs. Maximum rated current output is 40mA per pin on the ATtiny and even then it's best to not get close to that amount to prevent hardware damage. Also, since a 5&quot; LCD is likely to be full-color and at a higher resolution (at least QVGA) it's rare to have a low-powered processor with few pins control a display like that. It's better to go with one of the more capable AVR processors, or a Raspberry Pi (the Pi Zero would be enough).Wow, that really opens up my options, doesn't it. I wonder what drove down the price. It will be a big tougher to install, what with the OLED circuit that I will also have to make and put in there, but that's part of the challenge of SFF isn't it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite94" alt=":p" title="Stick Out Tongue&nbsp; &nbsp; :p" loading="lazy" data-shortname=":p" /></blockquote>

[QUOTE="CC Ricers, post: 11974, member: 130"] The limits depend partly on the power and current draw than on the size of the LCD, but I think it would have problems powering the backlight of most 5" LCDs. Maximum rated current output is 40mA per pin on the ATtiny and even then it's best to not get close to that amount to prevent hardware damage. Also, since a 5" LCD is likely to be full-color and at a higher resolution (at least QVGA) it's rare to have a low-powered processor with few pins control a display like that. It's better to go with one of the more capable AVR processors, or a Raspberry Pi (the Pi Zero would be enough). Wow, that really opens up my options, doesn't it. I wonder what drove down the price. It will be a big tougher to install, what with the OLED circuit that I will also have to make and put in there, but that's part of the challenge of SFF isn't it :p [/QUOTE]

Verification