Spreadsheets

• UK PAYE Tax calculator spreadsheet
• VFR Flight planning spreadsheet

Hardware, Radio and Reverse-engineering

• A software MPT1327 Trunking System Controller
• SB9600/SBEP control library for Motorola radios
• A look inside a musical keyboard
• BT Home Hub teardown (old)
• Hacking the new Lidl Smart-Home gateway

Security

• OATH OTP (One time password) Python Library and Test Program

Miscellaneous

• Simple CAPTCHA Library for Python (Web) Frameworks
• Barcode Control
• ATEN KE8220 for Linux/Apple Mac
• CC128 / Current Cost / EON RRD Logger
• MHEG-5 (UK profile) VIM Highlight script