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Hardware:Tag2747

Tag

Tag with mems sensors

Mobile device 2747 Tag

Features

  • UWB transceiver with onboard antenna
  • Pressure sensor (height/altitude)
  • RGB and red/green LED indicators

Revision: A5
Release: 2014-10-03
Product number: TAG-A8b / TagKiwi
Order number: 2747 TAG
Dimensions: 27 × 47 mm
Soldermask color: blue

  • AT91SAM3S2B (Atmel) - ARM Cortex-M3 microcontroller, 64MHz, 128 KiB Flash, 32 KiB SRAM
  • DW1000 (Decawave) - UWB Radio Transceiver, IEEE 802.15.4-2011 compliant
  • AM0805 (Ambiq) - Ultra low power RTC

Sensors

  • LPS25H (ST) - Digital Pressure Sensor (option)
  • LSM9DS0 (ST) - Digital Accelero, Gyro and Magnetic sensor (option)
  • HTS221 (ST) - Humidity sensor (option)

Power sources

  • micro-USB
  • edge connector
  • debug connector
  • LiPo battery

Switch options

  • "On" position - permanently powered (to charge battery)
  • "Off" position - activity depend on selected power management scheme
2747 Tag pinout
External connections
Pin Name Description
1 GND Ground
2 TWCK TWI0.TWCK (PA4)
3 TWD TWI0.TWD (PA3)
4 RFIDANT RFID
5 AC1 RFID
6 5V +5V input or output
7 DRXD Debug serial input
8 DTXD Debug serial output
9 RESET NRST - Reset input/output
10 QI1 BQ51050BRH.AC2
11 QI2 BQ51050BRH.AC1 (via 200nF)
12 LED GREEN PA29
13 GND Ground
14 PWM
15 VBAT 3V3 in
16 3V3 +3.3V out
17 DAC0 PB13
18 DAC1 PB14
19 GPIO PB2
20 ADC1 PA18
21 GPIO PA26
22 GND Ground
23 GND Ground
24 GND Ground