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by sora03
Mon Oct 30, 2017 2:54 am
Forum: Beginners
Topic: Powering a 2.5" USB hard drive on Pi3
Replies: 20
Views: 9744

Re: Powering a 2.5" USB hard drive on Pi3

it is not pointless to connect a usb hdd to 2 ports of the pi usint a y cable. if i do not connect the other cable to the port the hdd fails and pi wont boot. the config.txt must enabled 1.2A and there should be a delay in mounting the root parrtition /boot/cmdline rootdelay=10
by sora03
Fri Oct 27, 2017 11:44 pm
Forum: Beginners
Topic: Wi-Fi camera
Replies: 2
Views: 710

Re: Wi-Fi camera

if you want it to be like a cctv. i use the motion project it streams motionjpeg to a http website. you can use a usb camera or/and the official camera. pi3 has onboard wifi so you can setup a AP to access tbe stream and the files. for viewing the files you can install a samba server so you can view...
by sora03
Fri Oct 27, 2017 11:30 pm
Forum: Beginners
Topic: Raspberry Pi Zero W lost packets via WiFi
Replies: 10
Views: 1291

Re: Raspberry Pi Zero W lost packets via WiFi

you can write a python with bash script to determine network connection and reconnect if no internet. run script using crontab every x minutes #!/usr/bin/python #GNU GPL v3 import os import time import urllib2 try: urllib2.urlopen("http://www.google.com").close() except urllib2.URLError: print "Not ...
by sora03
Fri Oct 27, 2017 11:23 pm
Forum: Beginners
Topic: Raspberry Pi 3 Wifi connected but no internet
Replies: 11
Views: 6821

Re: Raspberry Pi 3 Wifi connected but no internet

ERR_NAME_RESOLUTION_FAILED means that theres no DNS server configured. are you using CLI or GUI? try to cat /etc/resolv.conf to get an ip address you nees to configure the /etc/network/interfaces also try to get a dhcp lease; # dhclient wlanX change wlanX to yojr wifi interface name. sudo ifconfig -a
by sora03
Fri Oct 27, 2017 11:18 pm
Forum: Beginners
Topic: Powering a 2.5" USB hard drive on Pi3
Replies: 20
Views: 9744

Re: Powering a 2.5" USB hard drive on Pi3

im powering a usb hdd from a pi 2b it is connected to pi 2 usb port (y cable). it os powered by a MP1584 dc dc buck boost con ected from a laptop charger, always make sure that the microusb cable is thick and not cheap since it is always the cause of pi being throttled. i also have a cheap usb hub b...
by sora03
Fri Oct 27, 2017 2:11 am
Forum: Beginners
Topic: [SOLVED]12v UPS DIY circuit attiny85 lm317
Replies: 67
Views: 20271

Re: 12v UPS DIY Help

attiny85 ____ PIN1 RESET PIN as INPUT AnalogRead -| |- PIN8 Vcc 3v3 from MP15884 PIN2 connect to 1k 2n3904 to gpio -| |- PIN7 connected to 1k and 2N3904 for controlling the RESET P6 header PIN3 connect to RPi GPIO for receiv -| |- PIN6 connected to mosfet RPI to battery load (cut-off if battery is 1...
by sora03
Thu Oct 26, 2017 12:18 pm
Forum: Beginners
Topic: [SOLVED]12v UPS DIY circuit attiny85 lm317
Replies: 67
Views: 20271

Re: 12v UPS DIY Help

Hey guys, i am planning to upgrade my auto cutoff circuit by adding a hardware watchdog like to RPi (prevents shutdown always on if AC and DC are available) I used this circuit to protect the SLA battery from overdischarging: https://cdn.instructables.com/FN9/4XUC/IHJJ58YA/FN94XUCIHJJ58YA.MEDIUM.jpg...
by sora03
Mon Jun 19, 2017 11:27 am
Forum: Gaming
Topic: Xash3D Engine on Raspberry Pi
Replies: 257
Views: 60485

Re: Xash3D Engine on Raspberry Pi

can anobody post on how to compile xash3d or just a xash3d dedicated server for cs16client. The author of the cs16client does not want to port it on other platforms such as linux, windows etc. I just want to create a xash3d cs16 server on the pi so I can play with my android device with bots.
by sora03
Mon Jun 19, 2017 11:24 am
Forum: Beginners
Topic: [SOLVED]12v UPS DIY circuit attiny85 lm317
Replies: 67
Views: 20271

Re: 12v UPS DIY Help

The 12V Simple DIY UPS circuit works but it does not have any protection (short,undercharge,overcharge) so I researched on a Battery Monitor circuit that utilized a ATtiny85 and a NTD5867 MOSFET (It is on iNstructables). The circuit was programmed using a Raspberry pi since I do not have any arduino...
by sora03
Mon Jun 19, 2017 11:21 am
Forum: Networking and servers
Topic: how to limit internet not LAN speed?
Replies: 0
Views: 281

how to limit internet not LAN speed?

I am trying to limit the internet connection to be equally shared to all wifi AP clients. But I do not want to limit the LAN for streaming via VLC or SFTP. I currently have 2 Wifi interface a AP and the WiFi client to the router since ethernet is not an option. wlan0: AP mode IP: 192.168.1.1 DNS: 19...
by sora03
Wed Apr 12, 2017 4:46 am
Forum: Beginners
Topic: How to program attiny85 using rasperry pi 2?
Replies: 0
Views: 608

How to program attiny85 using rasperry pi 2?

Hi, I am trying to program the Attiny85 using the Raspberry pi 2 B but I don't know how to upload the ino file. This is what I am trying to do, I am creating a lead acid overdischarge cut off circuit the circuit uses the Attiny85 and Arduino UNO as the ISP programmer the author has given the Ino fil...
by sora03
Thu Mar 23, 2017 12:45 pm
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

I have installed MP1584 (set to 5.33V no load) along with LM2596 (set to 5.24V no load). The MP1584 powers the Pi2 alone while LM2596 powers the USB hub and peripherals, however my USB Speaker has lot of static noise after installing the MP1584, it is powered by LM2596 with common ground to MP1584, ...
by sora03
Sun Mar 19, 2017 3:04 am
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

That particular LM2596 design is commonly sold as a 3A regulator. It really does not have enough cooling. I would say without cooling it should be rated at about 1A continuous. Your heatsinks should help, I just don't know to what degree. Be careful of the bottom heatsink, there might be through ho...
by sora03
Sat Mar 18, 2017 1:26 pm
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

What mosespi said. Also, wind the voltage down a bit -- you do not want more that 5.2V at the GPIO (the Pi rating is 5.25V maximum at the microUSB -- exceed that at your own risk). Arrange the regulator so the heatsink is vertical (base and ribs), and has clear airflow. While it will work without t...
by sora03
Sat Mar 18, 2017 1:22 pm
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

That particular LM2596 design is commonly sold as a 3A regulator. It really does not have enough cooling. I would say without cooling it should be rated at about 1A continuous. Your heatsinks should help, I just don't know to what degree. Be careful of the bottom heatsink, there might be through ho...
by sora03
Sat Mar 18, 2017 4:33 am
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

So is the LM2596 getting hot? If too hot to touch comfortably, that may be the problem. Otherwise there is something else wrong with the regulator circuit -- it should not drop that much on load. I am still concerned about potentially applying 5.9V to your Pi at shutdown. The module heatsink, capac...
by sora03
Thu Mar 16, 2017 12:49 pm
Forum: Wanted
Topic: Buying Raspberry Pi in the Philippines
Replies: 6
Views: 6122

Re: Buying Raspberry Pi in the Philippines

https://circuit.rocks
trusted. package arrive after a day via LBC, you pay for the shipping.
by sora03
Thu Mar 16, 2017 12:42 pm
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

the LM2596-ADJ module is now set to 5.9V (NO LOAD) condition, but when there is a LOAD connected the voltage drops to about 5.20V~ . I have connected a multimeter (set to Ammeter mode) is series with the LM2596 Output to the Pi (microUSB and USB Hub input) the Ampere value are: 1.30 A 1.41 A 1.36 A ...
by sora03
Wed Mar 15, 2017 11:59 am
Forum: Beginners
Topic: Throttled 0x5000?
Replies: 5
Views: 2387

Re: Throttled 0x5000?

so what does 0x5000 means? is it undervoltage? I don't know how to interpret those 0x500 to your 1 4 12 bits....
by sora03
Wed Mar 15, 2017 11:04 am
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Re: Undervoltage warning LM2596

Answers: 1. I have unplugged the official psu now 2. The LM2596 if NO-LOAD has the 5.9V but under load it drops to 5.05V to 5.2V (should I increase it OVER 6V to compensate the voltage drop under load) 3. GPIO voltage on Pi's 5V GPIO now is 4.80 to 5.00V 4. I have tried powering using Official PSU o...
by sora03
Wed Mar 15, 2017 10:22 am
Forum: Troubleshooting
Topic: Undervoltage warning LM2596
Replies: 16
Views: 5998

Undervoltage warning LM2596

I am getting undervoltage warning (blinking red LED) I am using a LM2596-ADJ buck voltage regulator from a 19V source and 12v source (lead acid battery). Here is my set up: PSU/UPS Setup - Official PSU +5v 2A connected in parallel to the LM2596 regulator output ( it might increase amperage not volta...
by sora03
Wed Mar 15, 2017 9:50 am
Forum: Beginners
Topic: Throttled 0x5000?
Replies: 5
Views: 2387

Throttled 0x5000?

I have combined two power supplies, the Official PI PSU +5V 2A and a LM2596 5.8V ~3A but the Pi's Red LED still blinks when I am transferring files via SFTP. Then I executed the command in shell: $ vcgencmd get_throttled Outputs: 0x0 - if all esle fine 0x5000 = ? What is this? 0x5005 = ? This is the...
by sora03
Sun Jan 15, 2017 2:32 am
Forum: Networking and servers
Topic: Raspberry pi 3 as wifi extender
Replies: 4
Views: 5908

Re: Raspberry pi 3 as wifi extender

it looks like we have the same problem. You want to share wlan1 which is connected to a AP other than yours to wlan0 which is your access point (AP) right? For wlan1 you can use wpa_supplicant to auto connect it to the target AP, for wlan0 you need to install and configure hostapd + isc-dhcp-server ...
by sora03
Sun Jan 15, 2017 2:16 am
Forum: Beginners
Topic: sharing wlan1 to wlan0 help
Replies: 1
Views: 436

sharing wlan1 to wlan0 help

I want to extend my Router AP range so I have a raspberry pi that has a WiFi receiver and a WiFi receiver which runs hostapd to make it another AP (access point). The connected to my router WIFi receiver is the interface: wlan1 the AP that should share the wlan1 is the interface: wlan0 The Wired eth...

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