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  1. Geofrancis

    overclocking a monitor :O

    is it just me or is 60fps far too slow for a fps? anything less than 90 for me looks laggy even with a 60hz screen.
  2. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    ok some more progress! done some thermal testing to see if the batteries would overheat but with the 6mm depron between the panel and the batteries they are barely getting warm. then i done some cold testing by sticking the router in my freezer for a week at -20 to see the effect on the battery...
  3. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    everything apart from the current sensor is now working damn slow china post. next step is to learn about the power management on the arduino so that i can minimise its power consumption.
  4. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i have hooked up a pair of resistors as a voltage divider and calibrated it for my 3.3v arduino, 10k LDR and 10k resistor to measure sunlight TMP36 thermistor is working but needs better calibrated the only thing stopping me installing this in a router just now is waiting for my current sensor.
  5. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i have got sick of waiting for my arduino lillypad and decided to just convert my arduino pro mini to 3.3v and use it for calibrating everything. now the ardino is talking to the router i can start connecting sensors.
  6. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i hooked up my test arduino nano v3 via a couple of 1k resistors to the routers serial port and got it kind of working... its getting a lot of corruption at 115200 but to change it i would have to compile openwrt from source as the serial baud rate is hard coded into the kernel but i think it...
  7. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i soldered the wires on for the 3.3v voltage regulator and hot glued it in place along with the wires for the serial and a led to make sure the pads were working.
  8. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i have been spending the last few days working out the best way to setup a transparent wireless repeater on DD-WRT or OpenWRT. unfortunately i didn't realise the universal repeater function was only available on broadcom and not on my atheros based routers so eventually after not being able to...
  9. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    ok using a combiation of the firmware from here and guide here I have managed to get ser2net running on openwrt and accepting connections from my pc over the network. when my arduino arrives il find out if it works properly.
  10. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    my first prototype was a little funky looking it ran from 2x 5v 1A solar panels in parallel charging a 1s 6p rewired laptop battery. everything is mounted to a spare tv antenna that was ideal for adjusting the panels for the optimum angle. but this time im trying to put everything inside a solar...
  11. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    my TP link router arrived today what i have to do: install OpenWRT, configure the serial port to run at 9600 baud rather than 115200 to hopefully save a little more power install ser2net setup ser2net to forward the onboard serial port solder 2 wires from the serial port to the arduino...
  12. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i have make singificant progress on the arduino software i now have functional voltage,amps,temperature, light, cooling and heating. i have even managed to add graphing to it using SimPlot http://www.negtronics.com/simplot im just waiting for some sensors and the routers now.
  13. Geofrancis

    Question about ATX Ver2.4 for PSUs?

    http://cache-www.intel.com/cd/00/00/52/37/523796_523796.pdf 2.4 is the 1.31 revision i think Updated Table 7 Recommended System DC and AC power consumption Changed 3.2.10 12 V2DC Minimum Loading to REQUIRED Updated 3.3.6 Rise Time Updated CFX12V Specific Guidelines to version 1.5 LFX12V...
  14. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i am replacing the cheap ebay regulator at 4v and the linear regulator in the router with a TRACO TSR 1-2433 - 3.3V/1A switching regulator to try and get power consumption down as low as i can. if i bypass the regulator and run both the arduino and the router direct from the 3.3v switching...
  15. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i want to mas produce these soon so i am doing my best to keep the costs down so far its: 20W solar panel £32 TP-link wr703n with openWRT £14 4s 5800mah lithium pack £30 arduino lillypad...
  16. Geofrancis

    Arduino for managing Solar powered wireless router volts/amps/temp/light

    i have built a solar powered wireless router and to manage it i have designed a system around an arduino board connected to the network via a serial port and SER2NET on openWRT. the idea is to use the arduino to monitor the battery voltage, solar panel current output, sun brightness, uptime and...
  17. Geofrancis

    Mussels Phone timeline - From iPhone 3gs to samsung S4 (a not so mini review)

    i agree with your review totally. the 3gs was a fast phone when it came out on ios 3 then got slower and slower untill its almost unusable on ios6 then i went to my 4s on ios5 and it was fast so i kept it on 5 for 2 years untill i upgraded to 7 2 weeks ago since then all it has done is freeze...
  18. Geofrancis

    Crackling audio in games.

    are you using the default windows drivers on your soundcard or the drivers that came with your motherboard?
  19. Geofrancis

    tricking network port into thinking cable is connected

    the router is running from a pwm but the voltage divider is so the arduio can measure the voltage. it can only measure from 0-5v on its analog input so i need to drop the maximum 22v to a maximum of 5v so i dont burn out the arduino...
  20. Geofrancis

    tricking network port into thinking cable is connected

    after all that there is no way to check the port status on ddwrt :( so plan B is an arduino board that im going to make into a battery monitoring station Arduino lipllypad 2x resistor for votage devider current sensor thermistor to drive a TEC plate for overheat and cold protection. sent over...
  21. Geofrancis

    tricking network port into thinking cable is connected

    since ever more googling didnt get me anywhere i done it the old fashoned way of stripping and old router and soldering 2 ports together and slowly cutting wires one by one till i only had 2 left. then took them off and jumped the 2 remaining wires on the port and it lit up. im pretty sure its...
  22. Geofrancis

    tricking network port into thinking cable is connected

    ok after some more goggling do you think if wired the tx pair to the Rx pair on the same port it would detect its self? then i could use something like a transistor to turn it on and off.
  23. Geofrancis

    tricking network port into thinking cable is connected

    from some searching on wikipedia it says A 10BASE-T transmitter sends two differential voltages, +2.5 V or −2.5 V. so does that mean i just put 2.5v on the data pins and it should show as connected? the reason i use it is it only uses 0.5w of power so is very easy to power with a 22v 10w...
  24. Geofrancis

    tricking network port into thinking cable is connected

    what pins would the power have to be on for it to detect it? i just tried a cable tester on it and nothing happened.