Recent content by Roboteernat

Hi After a LONG period away from the forum, i return with a simple question... Im looking to make a switchable 5v supply to different USB devices, and was looking at the BCX38B darlington transistor circuit to switch on devices, with the intent of having the usb device inbetween the connections...

Hi all, i return back to the world of picaxe! what shall i do if my ant breaks off, if i resolder it will this cause any issues re feedback etc, or will i just loose length of transmission? does it have to be a specific length? nat

Has anyone tried to connect the xbee modules to a mac. I need to add wireless comms toi a robot which is controlling something with mac msp (not my area) and was wondering if i could connect the modules to it. I am thinking of using the starter boards, in which it says you can connect to pc -...

Well, the day has come, and the results for my robotics degree have arrived. i have opened them, and on wednesday 18th july, i will be graduating with a first class honours degree :D the robotic hand, powered by a picaxe, gave me a total of 78% overall, so yay! a video is up on youtube of the...

well the processing... just for those who know my project, i had my vivas - final year assessments for my final year project, its worth 40credits out of 120 for my final year. my first viva was my project supervisor, and i got 75%, and the second was a seperat marker who said i was a very good...

i may require a 40x from someone as its almost my final year project day - tomorrow and i believe my 40x is no longer downloading for some reason. i have tried on 2 different dl breadboards i have and its not recognising a chip ready for dl. if therwe is anyone in plymouth area that dont mind...

im thinking of using keyvalue to write the letter onto an lcd, such as: <code><pre><font size=2 face='Courier'> display_lcd: readadc 0,spell_mode if spell_mode &lt;= 200 then goto loop1 debug b1 serout 7,T2400,(254,128,&quot;Please enter letter &quot; ) serout 7,T2400,(254,192,&quot;You entered...

Hi, i been doing a bit of searching in the forum to see if this had allready been answered, but couldnt find anything. I have a keyboard connected to a 40x, and with the delivery of my lcd firmware (tomorrow hopefully) it will be connected to a 16x2 lcd display or 20x4 (not sure yet) The aim is...

Further to my previous post, i have devised a way of using 2 ADC inputs to determin which switches are pressed. The code works apart forom one bit which i cannot work out so if any keen eyes out there would like to glance over it and see any errors would be appreciated. i will explain the code...

Hi, just wondering quickly, if there is a command to use the programming serial input to read serial data from, such as a wireless reciever. there is one for serial output -sertxd, but is there one for input? saves me having to use an 18x rather than 28x, which i wanna try not to. thanks. nat...

hi, im a windows user (thankfully) and for a project i am required to interface (somehow) wiresless with a mac using a picaxe. idea being, the picaxe reads in sensors, and transmits wirelesly. currently im using a 433 mhz el-cheapo (works brilliantly) quasar uk tx and rx (same as in my robotic...

2 questions really. the first is to do with my code, second is programming errors. 1. i have modified 2 servo motors so that they drive continuasly and are speed controlled by the pwm value. in the ocde, i wish that at a point they stop driving, however they seem to stop and continue to drive...

Is it possible somehow to... make an if or statement where the variable its comparing to is plus 10 or negative 10, ie <code><pre><font size=2 face='Courier'>if b1 &lt;= (b12 - 10) or b1 &gt;= (b12 +10) then ... </font></pre></code> the command goes to ... if the value for b1, say 100 falls...

has anyone used the SD20 servo controller chip available from robot electronics. im currently using the sd21 servo controller, but was wanting to make my own board and not require using the readyu made one and interfacing it. is it possible to interface via the i2c bus, bearing in mind the...

in reply to: How about some info on the golf ball following robot, please. That is just so good. I assume it is picaxed. Were you involed with the autonomous following transport robot as well? I would like to be able to build something like that. Unfortunatly, that was a project for another...