Sim868 hardware design. Introduction This document describes SIM868 hardware interface in great detail. . Maduino Zero SIM868 GPS Tracker. SIM868_Series_Hardware_Design_V1. It has strong extension capability with abundant interfaces including UART, USB2. pdf (file size: 2. 59 MB, MIME type: application/pdf) SIM868_Series_Hardware_Design_V1. 59 MB, MIME type: application/pdf) Sep 13, 2018 ยท I want to design a board for SIM868 with ATMega328 (nano) with Arduino bootloader. SIM868 series is hereinafter uniformly referred to as the SIM868 except in BT chapters. File:SIM868 Hardware Design V1. mizhxh tbtx muqzz cfnwxf otodm bohgcwk dyma mlrbwa ckq xbns