I have produced the control system for several pipe organs using electro-magnetic solenoids for the stop actions. I just finished a new one where we use pneumatic cylinders to provide force. A pneumatic system can actually work without producing much noise if set up correctly. So we are very happy with this new organ in St. Johannes church, Stavanger, Norway. Continue reading ‘Pneumatic organ control’
Recent blog entries
- Very simple integer digital low pass filter
- Trim and bleed boxes for Xelatex PDF files
- Use the correct CUPS client driver
- C-function calculates CRC of Sensirion SHT1x humidity sensor data
- Python function calculates SHT1x humidity sensor check sum
- Interrupt driven SHT1x humidity sensor
- Script reads public IP address from ADSL router using UnP
- Change Beaglebone display geometry
- Arduino library for the AM2302 humidity and temperature sensor
- Thunderbird: Import mail from Kmail
- Python script sends bulk email
- Script reads present IP address from ADSL router
- Raspberry PI boot time vs memory card
- Busybox DNS server
- A class of Turing machines: Some turmite pair simulations
- TS-7500: Accessing DIO from C and Python via server
- Compile TS7500 sample code
- Cross compile for ARM, TS-7500 board
- NV-RAM for the TS7500 ARM single board computer