Here is a list of all documented files with brief descriptions:

[detail level 123]

src
a110x
a110x.h
ad8232
ad8232.h
adafruitms1438
adafruitms1438.h
adafruitss
adafruitss.h
adc121c021
adc121c021.h
adis16448
adis16448.h
ads1x15
ads1015.h
ads1115.h
ads1x15.h
adxl335
adxl335.h
adxl345
adxl345.h
adxrs610
adxrs610.h
am2315
am2315.h
apds9002
apds9002.h
apds9930
apds9930.h
at42qt1070
at42qt1070.h
biss0001
biss0001.h
bma220
bma220.h
bmpx8x
bmpx8x.h
buzzer
buzzer.h
cjq4435
cjq4435.h
dfrph
dfrph.h
ds1307
ds1307.h
ecs1030
ecs1030.h
enc03r
enc03r.h
flex
flex.h
gas
gas.h
mq2.h
mq3.h
mq4.h
mq5.h
mq6.h
mq7.h
mq8.h
mq9.h
tp401.h
gp2y0a
gp2y0a.h
grove
grove.h
grovebutton.h
groveled.h
grovelight.h
groverelay.h
groverotary.h
groveslide.h
grovetemp.h
grovecollision
grovecollision.h
groveehr
groveehr.h
groveeldriver
groveeldriver.h
groveelectromagnet
groveelectromagnet.h
groveemg
groveemg.h
grovegprs
grovegprs.h
grovegsr
grovegsr.h
grovelinefinder
grovelinefinder.h
grovemd
grovemd.h
grovemoisture
grovemoisture.h
groveo2
groveo2.h
grovescam
grovescam.h
grovespeaker
grovespeaker.h
groveultrasonic
groveultrasonic.h
grovevdiv
grovevdiv.h
grovewater
grovewater.h
grovewfs
grovewfs.h
guvas12d
guvas12d.h
h3lis331dl
h3lis331dl.h
hcsr04
hcsr04.h
hdxxvxta
hdxxvxta.h
hm11
hm11.h
hmc5883l
hmc5883l.h
hmtrp
hmtrp.h
hp20x
hp20x.h
ht9170
ht9170.h
htu21d
htu21d.h
hwxpxx
hwxpxx.h
hx711
hx711.h
ili9341
gfx.h
ili9341.h
ina132
ina132.h
isd1820
isd1820.h
itg3200
itg3200.h
joystick12
joystick12.h
kxcjk1013
kxcjk1013.h
l298
l298.h
lcd
eboled.h
hd44780_bits.h
jhd1313m1.h
lcd.h
lcd_private.h
lcm1602.h
sainsmartks.h
ssd.h
ssd1306.h
ssd1308.h
ssd1327.h
ldt0028
ldt0028.h
lm35
lm35.h
lol
lol.h
loudness
loudness.h
lpd8806
lpd8806.h
lsm303
lsm303.h
lsm9ds0
lsm9ds0.h
m24lr64e
m24lr64e.h
max31723
max31723.h
max31855
max31855.h
max44000
max44000.h
max5487
max5487.h
maxds3231m
maxds3231m.h
maxsonarez
maxsonarez.h
mcp9808
mcp9808.h
mg811
mg811.h
mhz16
mhz16.h
mic
mic.h
micsv89
micsv89.h
mlx90614
mlx90614.h
mma7455
mma7455.h
mma7660
mma7660.h
mpl3115a2
mpl3115a2.h
mpr121
mpr121.h
mpu9150
ak8975.h
mpu60x0.h
mpu9150.h
mpu9250.h
mq303a
mq303a.h
my9221
grovecircularled.h
groveledbar.h
my9221.h
nlgpio16
nlgpio16.h
nrf24l01
Callback.h
nrf24l01.h
nrf8001
aci.h
aci_cmds.h	Definitions for the ACI (Application Control Interface) commands
aci_evts.h	Definitions for the ACI (Application Control Interface) events
aci_protocol_defines.h	This file contents defines for the position of all the fields of ACI command or event messages
aci_queue.cpp	Implementation of a circular queue for ACI data
aci_queue.h	Interface for buffer
aci_setup.h	ACI setup functions
acilib.cpp	Implementation of the acilib module
acilib.h	Internal prototype for acilib module
acilib_defs.h	Definitions for the acilib interfaces
acilib_if.h	Prototypes for the acilib interfaces
acilib_types.h	Type used in the acilib interfaces
boards.h	Defines for the different Bluetooth low energy boards
dtm.h	Internal prototype for acilib module
hal_aci_tl.cpp	Implementation of the ACI transport layer module
hal_aci_tl.h	Interface for hal_aci_tl
hal_platform.h	HAL specific macros
lib_aci.cpp	Implementation of the ACI library
lib_aci.h
nrf8001.h
uart_over_ble.h	BLE specific macros
nunchuck
nunchuck.h
otp538u
otp538u.h
thermister_rt_table.h
thermopile_vt_table.h
ozw
ozw.h
zwNode.h
pca9685
pca9685.h
pn532
pn532.h
ppd42ns
ppd42ns.h
pulsensor
Callback.h
pulsensor.h
rfr359f
rfr359f.h
rgbringcoder
rgbringcoder.h
rhusb
rhusb.h
rotaryencoder
rotaryencoder.h
rpr220
rpr220.h
servo
es08a.h
es9257.h
servo.h
si114x
si114x.h
sm130
sm130.h
st7735
gfx.h
st7735.h
stepmotor
stepmotor.h
sx1276
sx1276.h
sx6119
sx6119.h
t3311
t3311.h
ta12200
ta12200.h
tcs3414cs
tcs3414cs.h
th02
th02.h
tm1637
tm1637.h
tsl2561
tsl2561.h
ttp223
ttp223.h
ublox6
ublox6.h
uln200xa
uln200xa.h
urm37
urm37.h
waterlevel
waterlevel.h
wheelencoder
wheelencoder.h
wt5001
wt5001.h
xbee
xbee.h
yg1006
yg1006.h
zfm20
zfm20.h
upm.h