This is the link to the HMC5883L
http://www.google.co.nz/url?sa=t&rct=j&q=hmc5883l&source=web&cd=1&cad=rja&ved=0CDcQFjAA&url=http%3A%2F%2Fwww51.honeywell.com%2Faero%2Fcommon%2Fdocuments%2Fmyaerospacecatalog-documents%2FDefense_Brochures-documents%2FHMC5883L_3-Axis_Digital_Compass_IC.pdf&ei=bfU7Ub2sBIOikQXu44GICw&usg=AFQjCNERVlsMXwth4SXIth4jIgNI8Y3gJg&sig2=d6hdUhYFIJLDARfhL76dig&bvm=bv.43287494,d.dGI
And the ADXL345
http://www.google.co.nz/url?sa=t&rct=j&q=adxl345&source=web&cd=2&cad=rja&sqi=2&ved=0CDYQFjAB&url=http%3A%2F%2Fwww.analog.com%2Fstatic%2Fimported-files%2Fdata_sheets%2FADXL345.pdf&ei=7PU7UZanAYfykAXg4IG4Aw&usg=AFQjCNFy6muK3LQUSYM8psaVQwl5M1hmvg&sig2=18jUFUDZF19X6cnBpthhLg&bvm=bv.43287494,d.dGI