SparkFun BlueSMiRF v2 Wireless Serial Link, up to 921600bps, ESP32-PICO-MINI-02 Module with Built-in PCB Antenna, Input Voltage: 3.3V to 5V, Board Dimensions: 44.2mm x 15.22mm
from $19.95
BlueSMiRF v2 - Headers, Wireless Serial UART Link, ESP32-PICO-MINI-02 Module with Built-in PCB Antenna, Input Voltage: 3.3V to 5V, Board Dimensions: 44.2mm x 15.22mm
DTECH DB9 Breakout Connector DB-9 Female RS232 Serial Adapter Solderless Module Board with Screw Terminals Block, Case, Long Bolts and Tail Pipes
from $7.98
JMT Memory Card M.2 B-Key to SD4.0 Converter Board UHS-II USB 3.0 SSD NGFF 3042 Converter 4G Slot
from $16.98
BUELEC DB9 Female and Male Connector in One Breakout Board,RS232/RS485/CAN/RS422 with DB9 Connector to Terminal Board Signal Module(2pcsDB9 Female/Male)
from $14.99
JUXINICE 5Packs DB9 Serial Adapters Breakout Board Solder-Free Module,D-SUB 9-pin RS232 RS485 Adapter to Terminal Connector with Bolts Nuts and Screwdriver (5PCS Male)
from $21.99
DTech RS232 to RS485 Converter Serial Communication Data Adapter with TX RX LED Indicators and Terminal Board
from $13.88
ST-Link/V2 in-Circuit debugger/Programmer for STM8 and STM32
from $49.30 ($49.30 / Count)
HiLetgo 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE
from $7.89
FORIOT 10Pcs RS232 to TTL Female Serial to TTL Serial Module Board Built-in MAX3232 Chip
from $8.99
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