Apartment, Multifamily & Rental Property Access Control
Apartment building access control hardware: anti-clone readers with matched fob sets, QR visitor codes, 4G controllers for rentals and UHF tags for gates.
ValenID · valenid.com · sales@valenid.com
HF-140 13.56 MHz Card UID Reader Module, 5 V TTL/USB
Entry-level 50 × 10 mm module that reports ISO14443A/B card UIDs to a TTL or USB host, for handhelds, smart locks and logistics devices.
- Reads ISO/IEC 14443 Type A/B card UIDs at 13.56 MHz
- Listed cards: MIFARE Classic 1K/4K, MIFARE Ultralight, NTAG, FM11RF08 and FM1208
- TTL and USB host communication listed on one part, 115200 bit/s
- 50 × 10 × 14 mm body with ±1 mm tolerance
- 5 V DC ±5% supply at under 200 mA
- Frequency
- 13.56 MHz
- Protocols
- ISO/IEC 14443A/B (UID)
- Interface
- TTL UART / USB
- Read range
- > 20 mm
- Power
- 5 V DC ±5%, < 200 mA
- Dimensions
- 50 × 10 × 14 mm
Reply within 24 hours Tested before dispatch Worldwide shipping
13.56 MHz Card UID Reader Module, 5 V TTL/USB: overview
The HF-140 is a straightforward 13.56 MHz UID reader: present an ISO/IEC 14443 Type A or Type B card and the module passes its unique ID to the host. Listed cards are MIFARE Classic 1K/4K (S50/S70), MIFARE Ultralight, NTAG, FM11RF08 and FM1208. It is meant for identification jobs such as user log-on at a handheld, opening a smart lock, or linking a parcel scan to the operator who made it.
The module measures 50 × 10 × 14 mm (±1 mm) and runs from 5 V DC ±5% at under 200 mA. Its single part number lists both TTL and USB host communication at 115200 bit/s. Rated read distance is more than 20 mm and depends on the card and mounting; the operating range is –10 to +65 °C, with storage from –20 to +80 °C at 15–90% RH.
Its specification closely matches the HF-120 and HF-130, so choose between them on documentation and lead time. The published connector drawing for this part shows only a 5-pin programming header (VCC, SWDIO, SWCLK, RESET, GND) rather than the host data pins, so we confirm the TTL/USB pin assignment and send the matching wiring sheet with samples.
Integration notes
Plan for a 5 V rail, a UART at 115200 bit/s or a USB connection, and keep metal clear of the reading face. If your design needs a documented host pinout today, the HF-130 publishes a 7-pin header with power, buzzer, USB and UART lines.
More features
- Read distance above 20 mm; rated –10 to +65 °C
HF-140 specifications
RF & credentials
| Operating frequency | 13.56 MHz |
|---|---|
| Protocols | ISO/IEC 14443A, ISO/IEC 14443B |
| Supported cards (UID) | MIFARE Classic 1K (S50), MIFARE Classic 4K (S70), MIFARE Ultralight, NTAG, FM11RF08, FM1208 CPU card and other ISO/IEC 14443A/B cards |
| Data output | Card UID (serial number) |
| Read distance | > 20 mm (depends on card type and environment) |
Interfaces
| Host interface | TTL UART / USB (pin assignment confirmed with samples) |
|---|---|
| Baud rate | 115200 bit/s |
| Programming header | 5-pin: VCC, SWDIO, SWCLK, RESET, GND |
Electrical
| Supply voltage | 5 V DC ±5% |
|---|---|
| Operating current | < 200 mA |
Mechanical & environment
| Dimensions | 50 × 10 × 14 mm (±1 mm) |
|---|---|
| Operating temperature | –10 to +65 °C |
| Storage temperature | –20 to +80 °C |
| Operating humidity | 15–90% RH |
Published programming header (J6)
| Pin | Signal | Function |
|---|---|---|
| 1 | VCC | Power |
| 2 | SWDIO | Programming data (SWD) |
| 3 | SWCLK | Programming clock (SWD) |
| 4 | RESET | Reset |
| 5 | GND | Ground |
Host TTL/USB pin assignment is supplied with samples.
Specifications can change between production batches. Confirm the current revision with us before placing volume orders.
Ordering options
Quote the SKU that matches your frequency, interface and mounting. Not sure? Send us your controller model and we will pick the variant for you.
| SKU | Configuration | Actions |
|---|---|---|
| HF-140-T-U | 13.56 MHz ISO14443A/B UID module, TTL/USB host communication, 5 V |
Where the HF-140 is used
- Staff badge log-on on rugged handheld terminals
- Card-to-open function in residential smart locks
- Linking parcel scans to the operator badge at sorting stations
- Low-cost card identification in tablets and mobile devices
UHF RFID for Warehouses, Dock Doors & Portals
Plan RFID for warehouse management: fixed readers and circular antennas at dock doors, conveyor tunnels, handheld cycle counts and on-metal asset tags.
HF-140 FAQ
Where are the TTL and USB pins?
The published drawing shows only the 5-pin programming header, so we confirm the host pin assignment and supply the wiring sheet with samples.
Which cards does the HF-140 read?
UIDs of ISO/IEC 14443 Type A and Type B cards, including MIFARE Classic 1K/4K, MIFARE Ultralight, NTAG, FM11RF08 and FM1208.
How does it compare with the HF-120 and HF-130?
All three share the same size, 5 V supply, read distance and ISO14443A/B UID support. HF-120 and HF-130 publish a 7-pin host header, and HF-130 is split into separate TTL and USB builds.
What read distance can I expect?
More than 20 mm, depending on the card type and how the module is mounted.
Before you buy
Related buyer guides
Wiegand vs OSDP vs RS485: Which Reader Interface Should You Specify?
Compare Wiegand, OSDP and RS485 reader interfaces: wiring, cable limits, AES-128 Secure Channel and steps for a compatible access-control migration.
125kHz vs 13.56MHz: Choosing Access Cards and Readers
125 kHz cards are cheap but easy to clone; 13.56 MHz cards add memory and, on DESFire-class chips, AES security. Compare range, chips, security and migration.
Wiegand 26-Bit Format Explained (with a Free Calculator)
Wiegand 26-bit is an even parity bit, 8-bit facility code, 16-bit card number and odd parity bit. Convert card numbers to hex and back with the calculator.
Related products
HF-160
13.56 MHz Multi-Protocol RFID Module with SAM Interface
Board-level 13.56 MHz reader/writer with on-board antenna and SAM interface pins, offered in ISO14443A, APDU, A/B and ISO15693 builds with TTL or Wiegand output.
13.56 MHzISO/IEC 14443A/B, ISO/IEC 15693 (by build)TTL UART, I2C, Wiegand 26/34
Details →
HF-200
USB CCID (PC/SC) 13.56 MHz NFC Reader Module
Tiny USB CCID smart-card reader module that adds PC/SC-accessible 13.56 MHz card reading to tablets, PCs, kiosks and ticketing terminals via an external antenna.
13.56 MHzUSB CCID (12 Mbps)ISO/IEC 14443A/B, 15693, 18092
Details →
HF-220
13.56 MHz USB NFC Reader Module, ISO15693 & FeliCa Options
USB-powered 47 × 26 mm multi-protocol HF module with built-in or external antenna, optional FeliCa, and SDKs for Windows, Android and Linux.
13.56 MHzUSB (12 Mbps)ISO/IEC 14443A/B, 15693, 18092; FeliCa (-FC)
Details →
HF-230
13.56 MHz Multi-Protocol RFID Module, Wiegand/UART Output
47 × 26 mm HF module reading ISO14443A/B, ISO15693 and NFC tags, with Wiegand or 3.3 V UART output, on-board or external antenna, and an optional FeliCa version.
13.56 MHzISO14443A/B, ISO15693, ISO18092; FeliCa on -FLWiegand or UART (3.3 V), selectable
Details →
HF-170
Compact 13.56 MHz RFID Module with External Antenna Port
Small-footprint 13.56 MHz read/write module that drives your own antenna through a 1.25 mm connector, with TTL, I2C or Wiegand output and Type A, APDU and A/B builds.
13.56 MHzISO/IEC 14443A/BTTL UART, I2C, Wiegand 26/34
Details →
HF-180
MIFARE Classic Read/Write Module, TTL/Wiegand 34/RS232
38 × 29 mm ISO14443A module that reads card UIDs and reads/writes MIFARE Classic sectors, available with TTL, Wiegand 34 or RS232 output.
13.56 MHz (ISO/IEC 14443A)TTL UART / Wiegand 34 / RS232 (by build)0–60 mm
Details →
HF-190
BLE 5.1 Dual-Frequency RFID/NFC Module, UART and USB
30 × 16 mm embedded module pairing Bluetooth LE 5.1 with 125 kHz and 13.56 MHz card reading, for terminals that must accept cards, tags and phones.
125 kHz + 13.56 MHzBLE 5.1UART (3.3 V) / USB
Details →
HF-210
Dual-Frequency 125 kHz/13.56 MHz Reader Module, USB or UART
47 × 26 mm module with on-board antenna that reads 125 kHz EM cards, or EM plus 13.56 MHz MIFARE/DESFire/NTAG, over USB or a UART/Wiegand connection.
125 kHz + 13.56 MHz, or 125 kHz onlyUSB, or UART (3.3 V) / Wiegand0–3 cm
Details →
Get pricing for the HF-140
Send your card type, interface and quantity. You get a quote, lead time and compatibility notes within 24 hours — samples available for most items.