Index
A
ARM compile options
Average voltage
Averaging effect
B
Bipolar stepper modes
half-step mode
one-phase-on mode
operation
two-phase-on mode
BroadCom power specifications
C
CD4013
CMOS inputs
description
flip-flop circuit
Raspberry Pi GPIO logic levels
Choppy digital-looking signal
Connector pinout
breadboard
cable-end connector
I2C communication
Raspberry Pi
wiring
Console commands
CPU percent-busy command
D
DC resistance
DHT11 sensor
humidity and temperature
power supply
protocol (see Protocol, DHT11 sensor)
source code
DMM
DS1307
bus speed
EEPROM
PCB
pin SQW/OUT
pins X1 and X2
Duty cycle
E
Electronics reference
Ohm’s law
power
units
F
Floppy-disk stepper motor
driver circuit
Darlington pair
JP1
LEDs
ULN2: PCB
5.25-inch
junk-box motor
winding resistance
windings
G
Gnuplot mode
gnuplot.cmd
IR signal
waveform
xhost command
GPIOs
design approaches
dodgy area
L298 IC
motor control
program unipolar.c
ULN2003A
transistors
GPIO 18 (GEN1)
GPIO output signal
H
H-Bridge driver
bipolar stepper modes
GPIO (see GPIOs)
junk-box motors
L298 (see L298 driver)
L298 PCB
program operation
schematic
I
I2C protocol
register address
sensor data
J, K
Junk-box meter
Junk-box motors
L
L298 driver
components
dual-bridge driver
full-bridge driver
inputs in1 and in 2
protection diodes
sensing resistor
LED
Light-emitting diodes (LEDs)
Linux uinput interface
device node
EV_ABS
EV_KEY
EV_REL
EV_SYN
header files
ioctl(2)
mouse buttons
posting EV_KEY
programmers
uinput_user_dev information
UI_SET_EVBIT event
M
MCP23017 GPIO
byte mode
gpio_open_edge()
I2C bus
i2cdump utility
inputs
INTCAPx
INT line
ioctl(2) call
key debouncing
logic levels
modprobe information
module i2c_funcs.c
output current
PCBs
pinout
poll(2) system
post_outputs()
pull-up resistors
reset timing
ribbon cable
Routine i2c_init()
software configuration (see Software configuration)
standby current
sysgpio.c
Mutex and cond variables
N
Nunchuk-mouse
connector pinout
I2C communications
input utilities
linux uinput interface (see Linux uinput interface)
timed_wait() call
X-Windows
O
ØMQ
compiling
download and installation
linking
P, Q
Power
Power standards
Protocol, DHT11 sensor
bias test results
data bits
GPIO
longjmp
master control
pull-up resistor
sensor bus
signal protocol
software
stderr
Pulse-width modulation (PWM)
average voltage
averaging effect
duty cycle
hardware peripheral
hardware PWM peripheral
meter circuit
parameters
principle of averaging the signal
program
GPIO 18
hardware and clock-rate registers
milliampere meter, 40% deflection
mmap() techniques
pwm_frequency()
pwm_init()
pwm_ratio()
set command
software (see Software PWM program)
PWM. See Pulse-width modulation (PWM)
R
Real-time clock
3-volt compatibility
capacitor
Dallas Semiconductor
DMM resistance
kernel modules
RAM address
Remote-control panel
console program
console source code
flip-flop, debouncing
flip-flop testing
sensing station design
sensing station program
sensor source code
switches and push buttons
S, T
Series-dropping resistor
Software
cat command
code organization
dump mode
gnuplot mode (see Gnuplot mode)
irdecode utility program
Raspberry Pi GPIO
RC5 protocol
remote control
signaling works
stderr output
waveforms
Software configuration
DEFVALx
GPINTENx
GPIOx
GPPUx
INTCONx
INTFx
IOCON register
IODIRx
IPOLx
OLATx
register addresses
Software PWM program
chgf and stopf structure members
CPU percent-busy display
data type
limiting factors
pwm_close()
pwm_open()
run, command
Software, stepper motor
configuration
GPIO assignments
pointer knob
single-character commands
testing
Stepper motor
floppy-disk (see Floppy-disk stepper motor)
full-step drive mode
half-step drive mode
input levels
power-on reset/boot
software (see Software, stepper motor)
wave drive mode
U
ULN2003A driver chip
Units
V, W, X, Y, Z
VS1838B IR receiver
decipher
photodiode
remote controls
resistor
signal transistor
software (see Software)
52.14.80.92