Overview – Holux GR-231 User Manual
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HOLUX
GR-231 Bluetooth GPS Receiver Manual
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1. Overview
(Fig.1)
The
HOLUX
GR-231 Smart wire-less Bluetooth GPS Receiver (Fig. 1) is a total
solution GPS receiver with Bluetooth, UART interface and built-in rechargeable battery 
for high sensitivity to tracking signal. GR-231 design is based on SiRF Star IIe/LP low 
power Architecture. 
GR-231 is a dual-function GPS receiver. Not only transmit satellite information
through the PDA or Notebook with Bluetooth interfaces but also is a G-Mouse GPS 
receiver through a data cable to deliver satellite signal to the device without Bluetooth 
interface. 
This positioning application meets strict needs such as car navigation, mapping,
surveying, security, agriculture and so on. Only clear view of sky and certain power 
supply are necessary to the unit. GR-231 contacts to other device through Bluetooth 
device, compatible interface of RS-232 or USB, and built-in recharge battery to save 
satellite information such as the status of satellite signal, the last location, date and time 
of last use. 
