Looking for a tiny joystick (max 12mm in length and 3.5mm in height excluding the plastic part)

March 20, 2023, 21:12

wandern.

in extreme heat

wandern.

but i do have vents

wandern.

and it doesnt get too warm in my country either

wandern.

so im not too concerned about that

andy_s

I have esp32 in enclosure with vents. Way larger case than you would ever want on your wrist.

andy_s

And it gets hot so much it is ... unpleasant.

andy_s

You can definitely hold it, it is not scolding hot, but is unpleasant. Entire case.

wandern.

i see

wandern.

but thats with phones too

andy_s

Phones have way larger area

wandern.

true

andy_s

And you do not have them "glued" to your body 24/7

wandern.

yep

wandern.

should i make the case wider?

wandern.

instead of 42x42mm

wandern.

maybe like 50mm?

andy_s

I don't think you understand... sec...

wandern.

all right

andy_s

Esp32 can pull as much as 600mA. 5*0.6 = 3W

wandern.

hm

wandern.

but i need to be able to run a nintendo emulator on it too

wandern.

without it running at 10fps

wandern.

or lower

andy_s

With 3W, maximum delta t of 10°C and very limited airflow you are looking at 30ccm heatsink.

andy_s

NOT a job for wristwatch.

andy_s

30 cubic centimeters.

andy_s

Just heatsink.

andy_s

0.5cm by 5 by 6

wandern.

thats not gonna be on your wrist anymore

wandern.

6cm

andy_s

oh and runing emulator on esp32? that is DEFINITELY not low power task.

andy_s

not even sure if it can handle it at all.

wandern.

how about

wandern.

an esp32-s2

wandern.

or s3

andy_s

which nintendo

wandern.

NES

wandern.

like retro

wandern.

not switch or wii or whatever 😅

andy_s

looks like ESP can do it.

andy_s

at roughly 10fps

andy_s

at full load

wandern.

itll be empty quickly though?

andy_s

3W

andy_s

less than an hour on 350mA battery.

wandern.

damn

wandern.

how about s2 or s3

andy_s

are they more powerful versions of esp32?

wandern.

yes

wandern.

but they run using less power

wandern.

i found a better GPS module

wandern.

thats smaller and runs at 3.7mA

wandern.

with 9-axis

andy_s

cg

wandern.

<@456538086453805068>should i get SPI or 8080

andy_s

?

wandern.

for the TFT display

wandern.

the touch

wandern.


wandern.


wandern.

i heard 8080 is easier to work with

wandern.

but im not sure

andy_s

not sure what 8080 is

andy_s

that is CPU.

wandern.

im stupid

wandern.

lmao

wandern.

8080 bus interface

andy_s

no idea what that is.

wandern.

no

wandern.

its intel 8080

wandern.

i was right

wandern.

the MCU-LCD interface 8080 bus

wandern.

proposed by intel

wandern.

Therefore, 8080 is used to refer to the MCU-LCD screen in many documents. It can be mainly divided into 8080 mode and 6800 mode, and the difference between the two is mainly the timing. There are 8 bits, 9 bits, 16 bits, 18 bits, and 24 bits for data bit transfer. Connections are divided into: CS/, RS (register selection), RD/, WR/, and data lines. The advantages are: the control is simple and convenient, no clock and synchronization signals are required. The disadvantage is: it consumes GRAM, so it is difficult to achieve a large screen (above 3.8). For LCM with MCU interface, the internal chip is called LCD driver. The main function is to transform the data/command sent by the host into the RGB data of each pixel, so that it can be displayed on the screen. This process does not require point, line, frame clocks. The LCD Driver IC of the MCU interface is equipped with GRAM. As a co-processor of the MCU, it accepts the Command/Data sent by the MCU and can work relatively independently. Pay attention to, the internal chip of LCD Module (LCM) is called the LCD driver. The main function is to transform the data/commands sent by the host computer into the RGB data of each pixel, so that it can be displayed on the screen. This process also does not require point, line, frame clocks.

wandern.

im getting SPI i guess

andy_s

ah this thing, parallel display.

andy_s

needs WAY more wires

wandern.

four?

andy_s

no.

andy_s

four is for SPI.

wandern.

i sent you the link of the one im getting

andy_s

ye, trying to copy it without that affiliate tracking crap

wandern.

oop my bad

andy_s

i see way more pins than 4

andy_s

those two connectors are NOT 4 wires.

wandern.

true

wandern.

lmao

wandern.

im getting SPI

wandern.

<@456538086453805068> would it be possible to use an ESP32 without a board

wandern.

and just attach the components themselves using soldering

wandern.

and wire

andy_s

dont. Signal degradation.

wandern.

all right

wandern.

any way to make the esp32 more compact besides a small board?

andy_s

um... no?

wandern.

all right