The Jee Book
The Jee Book
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The Jee Book

Last updated on 2015-07-02

About the Book

This is an early version of a book about physical computing, i.e. tinkering with electronics, hardware, software, and more.

All the articles used for the book can be read online on the JeeLabs weblog at <>.

For a bit of background, see <>.

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About the Author

Jean-Claude Wippler
Jean-Claude Wippler

On some days, I design software or build hardware. On other days, I write about it.

Table of Contents

    • Preface
      • About this book
      • Is it for me?
      • Organisation
      • History
      • A word about pills
  • I Explorations
    • 1. Physical Computing
      • The world of Arduinos
      • Raspberry Pi’s and Beagle Bones
    • 2. Getting Started
      • Brutally Bare Basics
      • Welcome to ‘32
      • Just an ARM and a LED
      • Long live the breadboard
      • Minimal code, the basics
      • The upload conundrum
      • Modifying the USB BUB
      • Uploading from Mac OSX
      • Uploading from Linux
      • Uploading from Windows
      • Life after uploads
      • Setting up the Virtual Machine
      • Setting up a toolchain
      • More tools for your tool belt
      • The need for speed
      • Relax and live longer
    • 3. Dip into the LPC810
      • Serial output from a DIP
      • Number crunching on a DIP
      • Atomic clock via a DIP
      • LEDs racing around a DIP
      • Motion out of a DIP
    • 4. Eye Squared See
      • Let’s take the bus
      • Masters and slaves
      • I2C on the Raspberry Pi
      • Re-flashing an LPC810 on the RPi
    • 5. LPC810 meets RFM69
      • Radio blips from an LPC810
      • From RFM69 to RasPi via I2C
      • One step at a time
      • Decoding incoming data in Go
      • Debugging the RF link
      • Picking up a signal
      • If only it were that easy…
      • Debugging the I2C bridge
      • Keeping track of the milli’s
    • 6. From LPC810 to LPC812
      • Meet the LPC812
      • It runs the same firmware
      • Soldering a TSSOP chip by hand
      • Adding an RFM69 radio
    • 7. Emulating EEPROM
      • Permanent variables
      • Emulating EEPROM with flash
      • A bag of C++ tricks
    • 8. Analog on the cheap
      • Measuring voltage without ADC
      • 10-bit ADC on LPC810 and 812
    • 9. Dataflash via SPI
      • Hooking up a dataflash chip
      • Accessing SPI memory
      • Too much capacitance is bad
      • Soldering one-off SMD circuits
  • II Projects
    • 10. Garage Parking Aid
      • Let’s build a GPA
      • Hardware design choices
      • Measuring distances
      • Reducing power consumption
      • Squeezing a bit more
      • In-System Programming
    • 11. Micro Power Snitch
      • Picking up magnetic energy
      • Collecting energy into a reservoir
      • First goal: just some blips
      • Setting up a test power source
      • The first MPS circuit
      • Yes, the MPS lives, but…
      • Adding a voltage monitor
      • Pretty picture, ugly effect
      • An improved MPS circuit
      • It’s all about the startup “hump”
      • Investigating the voltage doubler
      • A revised, complete MPS
      • Extremely slow ramps
      • Next MPS challenge: the radio
      • The MPS as prototype PCB
      • CT’s and burden resistors
      • Inductive spikes and safety
    • 12. Micro Power Snitch, continued
      • The PCB that got everything wrong
      • Back on track - now the hard part
      • Let’s switch to a better MOSFET
      • Anatomy of a power-up
      • Power through I/O pins?
      • Taming the radio startup current
      • The MPS really works
      • Should we send, or not?
      • MPS component improvements
      • Final MPS schematic and PCB
    • 13. RFM69 on Raspberry Pi
      • A super simple “RasPi RF” setup
      • Using WiringPi with RasPi RF
      • RasPi RF schematic and PCB
      • Hooking RasPi RF into MQTT
    • 14. RFM69 on ATmega
      • Classic vs native packets
      • RF compatibility options
      • RF69 native on ATmega’s
      • Using RFM12’s with RFM69 native
    • 15. Introducing the LPC824
      • Meet the LPC824
      • More LPC824 peripherals
      • Tinker Pico LPC824 board
    • 16. FTDI over WiFi: esp-bridge
      • Meet the esp8266
      • The esp-bridge circuit
      • Serial bridge
      • Web server software
      • Over-The-Air update
      • Putting it all together
  • III Toolbox
    • 17. Schematics and layouts
      • Circuits and schematics
      • The magic of copper and solder
      • Laying out and routing a PCB
    • 18. Embedded Linux
      • Pies, Bones, and Droids
      • Small Linux Boards
      • Ian started it all with Debra
      • Linux, pins, volts, and ports
      • Meet Raspie and Quadie
    • 19. Uploading over serial
      • Re-flashing an ARM chip
      • Let’s find out what’s going on
      • Uploading via a USB interface
      • Uploading (just about) anywhere
    • 20. Code for the LPC8xx
      • Exploring LPC824 peripherals
      • Using MBED as toolchain
      • LPCOpen and LPCXpresso
      • Using the Eclipse IDE on Windows
  • IV Concepts
    • 21. Volta makes the world go round
      • The water analogy
      • Heat versus momentum
      • Voltage sources
      • Level translation
    • 22. Bits, pointers, and interrupts
      • Low-level programming
      • Lots of bits and pieces
      • Pointer addressing
      • Casting types in C/C++
      • We interrupt this program
    • 23. We interrupt this program
      • Interrupts on ARM
      • Masking interrupts - or not
      • Interrupt service times
      • Serial port interrupts
      • Pin changes, levels, and edges
    • 24. Moving up a (few) level(s)
      • So many abstractions to choose from
      • A µC is just a small computer
      • No wait, it’s a language runtime
      • Or is it a data-driven engine, perhaps?
  • V Appendices
    • 25. The JeeNode
      • Soldering a JeeNode
      • Setting up the USB BUB
      • Installing the software
      • Hello, world
    • 26. JeeNode v6 reference

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