Modulo-1B-TY Data Sheet

Modulo-1B-TY is a development board for the ASR-1B Secure Bluetooth® low energy radio architecture, based on the nRF52832 BLE chipset. The board uses the pre-certified Taiyo Yuden EYSHCNZWZ module plus the Afero Hardware Security Module.

Modulo-1B-TY makes it easy to prototype and build connected products used in conjunction with the Afero IoT Platform. It enables ultra-low power connectivity for data communication. The product integrates a Bluetooth radio, RF front-end, a microcontroller running the Afero custom firmware, security IC, and crystal into a small package. This is an ideal solution for Internet of Things (IoT) applications.

This data sheet contains the following sections:

This data sheet is also available as a PDF file.



  • Model name: Afero Modulo-1B Secure BLE Radio Development Board
  • Part number: A-FGS-00017-00
  • Afero model number: Modulo-1B-TY
  • Bluetooth radio: Bluetooth low energy wireless technology (5.0)
  • Number of Bluetooth antennas: One (1)
  • Antenna configuration: On-module chip antenna
  • Maximum transmit power: 4dBm
  • Receive sensitivity: -96dBm
  • Power consumption: 7.5mA(TX), 5.4mA(RX)
  • Host interface: UART, SPI, 3.3V CMOS
  • Security features: Cryptographic co-processor with secure,
    hardware-based key storage
  • Interface pins: Four (4) x GPIO
  • Power: Supplied via an input pin (VIN: 4.0-5.5V) or via µUSB connector
  • Operating temperature: 0 - +85° C
  • Storage temperature: -40 to +85° C
  • Operating humidity: 10 to 80% RH, non-condensing
  • Storage humidity: 5 to 90% RH, non-condensing
  • LED indicators: One (1)
  • Buttons: One (1)
  • Dimensions: 62 x 18 x 12mm (L x W x H)
  • Weight (Earth ABL): 7g
  • Package: 600 mil DIP form factor
  • Compliance: FCC/IC/TELEC

Block Diagram

Pin Definitions


Pin # Name Description Pin # Name Description
1 GND Ground 19 IO0 General Purpose I/O
2 NC 20 IO1 General Purpose I/O
3 NC 21 IO2 General Purpose I/O
4 NC 22 IO3 General Purpose I/O
5 NC 23 SCLK SPI Clock
6 NC 24 INT Host Interrupt Active Low
7 NC 25 NC
9 TX Host UART Transmit 27 IO5 RESERVED
10 RX Host UART Receive 28 IO6 RESERVED
12 CS SPI Chip Select 30 NC
13 MOSI SPI Receive 31 RESET Reset Active Low
14 MISO SPI Transmit 32 NC
15 3V3_OUT Internal 3.3V LDO
Power Rail
33 NC
16 NC 34 NC
17 NC 35 NC
18 GND Ground 36 VIN External Power Input

Pinout Diagram

Configuration Options

Solder Bridge # Description
SB1 LED(D2) is connected to pin IO0 and is active high. LED will turn on when the pin is set high. User can disconnect LED from the pin by cutting the SB1.
SB2 User can measure current on 3V3_OUT rail by cutting the SB2 and applying current meter to each end of SB2.
SB3 Button(S1) is connected to pin IO3 and is active low. Pressing the button will indicate input value 0. User can disconnect the button from the pin by cutting the SB3.

DC Electrical Specification

Absolute Maximum Rating

Description Min Max Unit
VIN -0.3 6.0 V
3V3 -0.3 VIN + 0.3 V
I3V3 (3.3V Out) 200 240 mA

Recommended Operating Conditions

Parameter Min Max Unit
VIN 4.0 5.5 V
3V3 3.27 3.33 V
I3V3 (3.3V Out) 200 mA

Standard Test Conditions

Ambient Conditions: 25°C +/- 5°C, 65%RH +/- 10%

Power Supply: VIN 5V +/- 5%

Typical Power Consumption

Power Consumption Min Typ Max Unit
Sleep (No RF operations) 20 uA
TX only 7.5 mA
RX only 5.4 mA
Standby (250ms period advertisement) 60 uA

GPIO DC Characteristics

Symbol Parameter Conditions Min Typ Max Unit
VIL Low-Level Input Voltage All Pins 0 0.3 x 3V3 V
VIH High-Level Input Voltage All Pins 0.7 x 3V3 3V3 V
VOL Low-Level Output Voltage All Pins 0 .04 V
VOH High-Level Output Voltage All Pins 3V3 - 0.4 3V3 V
IOL Sink Current VOL_Max 1 2 4 mA
IOH Source Current VOH_Min 1 2 4 mA
RPULLUP Pull-up Resistor All Pins 11 13 16
RPULLDOWN Pull-down Resistor All Pins 11 13 16

RF Specification

Conditions: 25°C, VIN=5V, Parameters measured at RF connector.

Bluetooth® Low Energy (BLE) Characteristics

Items Min Typ Max
Specification Bluetooth® 5.0
Mode Bluetooth® low energy
Frequency Range 2402 - 2480 MHz
TX characteristics
Max Output Power 4dBm 6dBm
RX characteristics
Receive Sensitivity -96dBm

Environmental Specification

Absolute Maximum Rating

Description Min Max Unit
Storage Temperature -40 85 °C
Storage Humidity 5 90 %RH
Operating Temperature 0 85 °C
Operating Humidity 10 80 %RH

Recommended Operating Conditions

Parameter Min Max Unit
Operating Temperature Range 0 70 °C

Mechanical Specification

Mechanical Drawing

Antenna Keep-Out

To preserve antenna performance, keep materials away from the antenna element. The dimensioned box shows an example antenna keep-out region. Infringing on this keep-out should be done with direction from an RF engineer to best retain RF performance.

Mechanical Characteristics

Item Test Conditions
Assembly No defects of wiring, soldering, and assembling
Appearance No dirt, rust, corrosion, or foreign material
Mass 7g +/- 1g

Where to Obtain

Design Files

Complete Modulo-1B-TY design files are available at this GitHub link. The design files are open-sourced under the Apache 2.0 license.

Ordering Information

Module Part Number Notes
Modulo-1B-TY A-FGS-00017-00 Header pins installed

Compliance Notices



This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference.
  2. This device must accept any interference received, including interference that may cause undesired operation.

IC(ISED) Canada

Contains IC: 4389B-EYSHCN

This device complies with Industry Canada’s licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.

MIC Japan

Contains EYSHCN: 001-A10745

This product installs a radio system which has been approved as a radio station in a low power data communication system based on the Radio Law.