Hacking Roomba - Tod E Kurt Part 15 doc
Hacking Roomba - Tod E.Kurt Part 15 doc
... Detect to change Roomba s baud rate. After you have awakened Roomba (using Device Detect or by some other method) wait 2 seconds and then pulse the Device Detect low three times. Each pulse ... are intermediate intensities. Example: To turn on the dirt detect and spot LEDs, make the status LED red, and to light the power LED green at half intensity, send the serial byte sequence ......
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 13 docx
... from the robot’s perspective is an interesting experience. Between the dif- ferent angle and the lower image quality and frame rate, exploring even mundane places seems like exploring a different ... understand it, and vice versa. F IGURE 1 5-1 3: Inside the bulge, a PL-2303 USB-to-serial chip 3. Turn the board over and see the serial cable wires (see Figure 1 5-1 4, left side). For the C...
Ngày tải lên: 10/08/2014, 04:21
Hacking Roomba - Tod E.Kurt Part 1 pot
... vacuum cleaner is very inexpensive at under $300 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 ... required, as well as basic knowledge of their use. Expect to have on hand a multimeter, wire cutters/strippers, test leads, and so on. Each chapter describes exactly which tools are required. The...
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 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 help...
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 ... complete description of getting the SitePlayer Telnet on the network, see the SitePlayer Telnet manual. F IGURE 1 1-1 0: Configuring the SitePlayer Telnet serial port More Complex Interfacing Chapt...
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 ... to s...
Ngày tải lên: 10/08/2014, 04:21