Wind chime:
Had a few breakthroughs this week – one of the considerations for the wind chime, is deciding whether wind speed and direction is a primary driver of sound (like a normal chime) or more like another knob in a series of knobs tweaking some overall sound. for the former – I figured out a fun way this week to make “digital” chimes:


A joystick! -joysticks work by rotating two potentiometers (variable knobs that change voltage) that are 90 degrees to each other. each potentiometer represents position x and y. Connecting this to arduino you can map voltage to a corresponding reading of X&Y location. from X&Y location you can derive velocity and acceleration knowing the time and get a clear picture of how hard and how fast each chime was struck. potentially some cool shit to play with concerning the wiggle aftereffect – like delay or reverb.
making wind more of a background thing, includes using a wind speed and direction sensor like shown below. I also bought one of these.

Aside from the joysticks: made a list of sensors and variables to monitor uses as synth knobs and bought all the sensors:
variables | Record Hi | average Hi | Average Low | Record Low | frequency of shift |
rain amount +y/n (in) | 8 | 1 | 0 | multiple instances per day but seasonal (summer is none for 100days) | |
temperature (F) | 105 | 78 | 36 | 13 | slow rise and fall within a small range over a day. greater overall rise and fall over seasons. |
humidity (%) | 100 | 88 | 53 | 30 | variation over hours- range in summer higher than winter |
barometric pressure (inhg) | 31 | 28 | variation over hours- range in summer lower than winter | ||
ambient noise (DB) | 80 | 50 | 40 | 20 | variation over hours. highest during comute times, and during favorable wind direction |
wind direction | mostly seasonal, some day to day variation | ||||
wind speed (mph) | 60 | 9 | 2 | 0? | highest variation between changing temperatures (sunrise/sundown) and pressures, but small gusts make a chime go |
light intensity (?) | highest variation occuring when clouds/trees hide and reveal the sun. | ||||
UV | 9 | 6 | 1 | 0 | uv can be high during cloud cover. highest in summer when sun is closer to earth. |
air quality p0.3~1.0 | seasonal – air cleaned by rain. therefore summer has slowly increasing polution between long rain events. oh yeah and fire too. | ||||
p1.0-2.5 | 400 | 200 | 40 | 0 | |
p2.5-10 |
the next steps are to make what is called a Stevenson screen, or a double louvered box to put all the sensors in. this box is weather “proof” without actually having to weather proof the sensors themselves. essentially it is like leaving the window cracked, letting the elements in but not a bunch of rain and shit in also.
