Hacking Roomba - Tod E Kurt Part 3 pdf
Hacking Roomba - Tod E.Kurt Part 3 pdf
... Serial Interface Tether Getting Ready Figure 3- 6 shows the parts needed all laid out. From here you can see the difference between the Mini DIN cable (round ends) and the DB9 cable (flat ends). ... cable lines, generally the longer the cable, the larger the capacitors will need to be. And in RS- 232 , long means several hundred feet, not the 10-feet cable you’ll be using here. Maxim will he...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 2 pdf
... photodetector pair: the LED shines and the photodetector detects the LED’s light. When something (an interrupter) is inserted between the LED and photodetector, the photodetector senses the absence of light ... Sensors The most commonly used internal sensors are the wheel-drop sensors. All three wheels have a microswitch that detects when the wheel has extended down. In the case of Roomba, t...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 14 pdf
... complex techniques like soldering printed-circuit boards or surface-mount devices, although the techniques presented here can carry over to them. When you feel like you are ready to tackle more ... The snipped-off portion of the leads make great jumpers, as shown in Figures A-15 and A-16. Using the needle- nose pliers, bend one of the leads into a U-shape to match the distance you need ... th...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 1 pot
... vacuum cleaner is very inexpensive at under $30 0 for even the most expensive Roombas and $150 for the least expensive. The cheapest new Roombas can be found for around $100 on the Internet. For ... capabilities as presented via the ROI are described and tested. The few capabilities that aren’t accessible via the ROI are mentioned briefly. The Roomba s mechanical and electrical internals a...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 4 potx
... can minimize the number of wires needed to solder. Figure 4-5 shows one possible layout, with the BlueSMiRF plugged into the receptacle to gauge the layout. Notice that the header receptacle has been ... the differential gearing used in a car, but instead of one source of power divided between two wheels with gearing, both wheels are powered independently. By having both wheels powered, the...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 5 potx
... value in the sensor data is the difference in the distance traveled by each wheel. Specifically, it is the right wheel difference minus the left wheel difference. This difference describes a ... the center point between the two wheels. It’s as if the wheels are moving partially along a circumference determined by the distance between the wheels. If this sounds a lot like that millimetersPerDe...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 6 pot
... accompaniment to the melodic lead of the beeper. Piezo Beeper The sound-generating device that plays the Roomba tunes is called a piezo beeper. The beeper is similar in function and sound to most other ... noise. Piezo speak- ers are also used as the tweeters in some audio speakers. The piezo crystals can also be used in the opposite way. If you flex or squeeze a piezo (from the greek pieze...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 8 ppt
... a few of these embedded Ethernet devices designed to add TCP/IP and Ethernet capability to an existing device. The two devices focused on in this chapter are the SitePlayer Telnet by NetMedia ... SitePlayer Telnet System box and the serial tether created in Chapter 3. Connect the serial tether as normal, plug the tether into the SitePlayer Telnet System box, and then plug the SitePlayer Teln...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 9 pps
... her coffee maker on the Net. The tools and techniques learned for a wired network adapter carry over to a wireless one. For a mobile device like Roomba, it makes less sense because the cable ... an embedded Internet device server to an existing system. Adding Internet connectivity to stationary domestic objects with Ethernet is relatively cheap and simple. Everyone should experiment ... (WiM...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 10 pot
... interpreted system necessarily results in slower code that takes up more space. Figure 1 3- 1 3 shows how your blinking LED source code file gets turned into executable code for both an interpreted ... then you need to purchase a PIC programmer to burn the chips. And even when you have it all hooked up, the cycle time between write- compile-burn-use is long because it doesn’t work as seaml...
Ngày tải lên: 10/08/2014, 04:21