Useful for users who have external boards that run on lower logic thresholds, or simply want a 3.3V, 2.5V, or 1.8V supply. The logic terminals presented on this accessory board are for communication purposes only, they cannot drive relays or other forms of load.

  • Supports bi-directional communication
  • Up to 800kHz
  • 3.3V, 2.5V, or 1.8V
  • VOUT terminal can source up to 200mA

Note: Advanced users may convert the 1.8V option to 5V by installing a jumper on R5, and removing or destroying the voltage regulator marked U3.

Sizing Charts

Women

Size XS S S M M L
EU 32 34 36 38 40 42
UK 4 6 8 10 12 14
US 0 2 4 6 8 10
Bust 79.5cm / 31" 82cm / 32" 84.5cm / 33" 89.5cm / 35" 94.5cm / 37" 99.5cm / 39"
Waist 61.5cm / 24" 64cm / 25" 66.5cm / 26" 71.5cm / 28" 76.5cm / 30" 81.5cm / 32"
Hip 86.5cm / 34" 89cm / 35" 91.5cm / 36" 96.5cm / 38" 101.5cm / 40" 106.5cm / 42"

Men

Size XS S M L XL XXL
UK/US 34 36 38 40 42 44
Neck 37cm / 14.5" 38cm /15" 39.5cm / 15.5" 41cm / 16" 42cm / 16.5" 43cm / 17"
Chest 86.5cm / 34" 91.5cm / 36" 96.5cm / 38" 101.5cm / 40" 106.5cm / 42" 111.5cm / 44"
Waist 71.5cm / 28" 76.5cm / 30" 81.5cm / 32" 86.5cm / 34" 91.5cm / 36" 96.5cm / 38"
Seat 90cm / 35.4" 95cm / 37.4" 100cm / 39.4" 105cm / 41.3" 110cm / 43.3" 115cm / 45.3"