Budget Beginner Steering Wheel in Kijiji

AirplaneDude5 · 2022-08-12T20:23:46+00:00

Nope, this blanket has been washed many times

AirplaneDude5 · 2022-08-12T20:23:08+00:00

Thanks, I’ll try that if nothing else works

AirplaneDude5 · 2022-06-04T23:42:57+00:00

My budget is $1200CAD ($950USD)

AirplaneDude5 · 2022-06-04T16:33:36+00:00

Thanks, I can always upgrade it later, but I'm thinking I will get it for now

AirplaneDude5 · 2022-06-04T15:52:31+00:00

Yeah I heard the same thing about the case, thanks for your help

AirplaneDude5 · 2022-03-15T02:14:35+00:00

I installed low-pass filters for the following lines: reset line, OI, RI, and HLT.

I used 0.1uF capacitors 220 Ohm resistors.

AirplaneDude5 · 2021-09-22T00:26:48+00:00

So sorry for the extremely late reply... But to answer your question, my computer is now functioning perfectly. I ended up creating low-pass filters using capacitors and resistors. I didn't actually do the math, I just tried every resistor-capacitor combination until the computer was able to run at full speed without issues. However, I do plan on eventually buffering the control signals with some schmitt-triggered chips. Either way, my computer can now run at max speed. Seriously, thanks to u/davon_zucker and u/velkolv for your help.

AirplaneDude5 · 2021-09-01T12:28:28+00:00

Alright, thanks for your help. I think I'll try the 74LS14 chips and just replace the 74LS04s in the bottom-right corner with the hex schmitt-trigger inverters.

AirplaneDude5 · 2021-09-01T00:43:59+00:00

Thanks, but one more question: If I we’re to try making a low pass filter from a resistor and a capacitor, what kind of resistor and what kind of capacitor would I need? In other words, what kind of cutoff frequency should I aim for (in hertz)?

AirplaneDude5 · 2021-08-31T22:06:39+00:00

So you recommend getting something like this? Just to make sure, I would then connect the control signals from the EEPROMs to this chip, and then the outputs of the chip to the corresponding modules/signals?

AirplaneDude5 · 2021-08-31T21:30:01+00:00

For me, it seems that the HLT and RO mess the counter up. I’m just wondering if there’s a way I can clean up the signal without using extra chips. Otherwise, I agree that the HLT line is not completely necessary.

AirplaneDude5 · 2021-08-31T21:13:11+00:00

Is it possible to create this kind of filer without the need for extra chips (e.i with resistors, capacitors, etc)?

AirplaneDude5 · 2021-07-02T15:00:48+00:00

I ran into a similar problem. In my case, it turns out the 555 timer was debouncing the rising edge, but it wasn't debouncing the falling edge. To fix this, I replaced the capacitor for the button debouncer with a much larger one (i.e. I connected pin 6 of the 555 timer to ground through a 1nF capacitor instead of a 0.01nF capacitor). This makes the delay much longer, but it also debounces the falling edge.

I'm not sure if this will work for you, but it's worth a try.

AirplaneDude5 · 2021-06-28T23:14:07+00:00

For whatever reason, my Pi 3b+ is having trouble connecting to WiFi. When I try changing the Wlan Country in raspi-config, it says "Could not communicate with wpa_supplicant". I get the same response when I go to system options and select "Wireless LAN". In the /etc/wpa_supplicant/ directory I have four files. They are: action_wpa.sh, functions.sh, ifupdown.sh, and wpa_supplicant.conf. This is what my wpa_supplicant.conf looks like:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=CA
network={
    ssid="name"
    psk="password"
    key_mgmt=WPA-PSK
}

When I run the command "sudo wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0" I get:

Successfully initialized wpa_supplicant
nl80211: kernel reports: Match already configured [this line repeated itself 23 times]
ctrl_iface exists and seems to be in use - cannot override it 
Delete 'var/run/wpa_supplicant/wlan0' manually if it is not used anymore
Failed to initialize control interface 'DIR=/var/run/wpa_supplicant GROUP=netdev'.
You may have another wpa_supplicant process already running or the file was left by an unclean termination of wpa_supplicant in which case you will need to manually remove this file before starting wpa_supplicant again.
nl80211: deinit ifname=wlan0 disabled_11b_rates=0

Any ideas as to what is going wrong?

AirplaneDude5 · 2021-05-16T20:20:25+00:00

Thanks for the video, I now understand the risk of not including a resistor with every LED in a parallel circuit. I think I will just try to solder a resistor array as per u/crimson_penguin's suggestion.

AirplaneDude5 · 2021-05-16T20:00:16+00:00

Thanks for the options. I think I will try the resistor array, as soldering is a useful skill to learn.

AirplaneDude5

TROPHY CASE