Name: RS485 Serial Transceiver (H1DR1x)
SKU: H1DR10
Availability: BackOrder

Description

H1DR1x is an RS485 serial transceiver module based on Maxim Integrated MAX14840EASA+ transceiver and STM32F0 MCU.

Easy-to-use and compact 3.3V RS485 half-duplex transceiver with high ESD protection for long-range wired serial communication and industrial applications.
120 Ohm DC termination resistor included on each module and enabled / disabled by a solder jumper/ zero-Ohm resistor
100 nF AC termination included on each module and bypassed by default with a solder jumper / zero-Ohm resistor.
Use this module to connect to industrial equipment that supports RS485 interfaces such as PLCs, motor drives, and energy meters, among others.
Can be configured in either one of these modes: UART-RS485 bridge, or Modbus RTU terminal, or Modbus ASCII terminal.
Program advanced C code using our easy-to-use APIs and messaging system.
Use separately or combine with other Hexabitz modules and external hardware.

Specifications

Maxim Integrated MAX14840EASA+ RS-485 half-duplex transceiver:
- +3.3V ESD-protected transceivers.
- Up to 40Mbps half-duplex data rate.
- Symmetrical fail-safe and large receiver hysteresis (170mV) providing improved noise rejection and improved recovered signals in high-speed and long cable applications.
- Industrial ambient operating temperature range (-40 °C to +125 °C).
RS485 bus connector: TE Connectivity/AMP 2-position 5.08 mm shrouded header.
120 Ohm, 0603 SMD DC termination resistor included on each module and enabled / disabled by a solder jumper/ 0603 zero-Ohm resistor. The DC termination is disabled by default.
100 nF, 0603 SMD AC termination included on each module and bypassed by default with a solder jumper / zero-Ohm resistor.

Please visit this product projects on Hackster.io network.

Item	MPN	MFN	Description	Quantity Per Module
C1, C6, C7, C8, C9, C10, C12	0603YC104K4T2A	AVX	Cap Ceramic 0.1uF 16V X7R 10% SMD 0603 125C Paper T/R	7
C2	TAJR105M016RNJ	AVX	Cap Tant Solid 1uF 16V R CASE 20% (2.05 X 1.3 X 1.2mm) SMD 2012-12 20 Ohm 125°C T/R	1
C3, C4, C11	10TPU4R7MSI	Panasonic	CAP TANT 4.7UF 10V 20% 0805	3
C5	0603YC103KAT4A	AVX	CAP CER 10nF 16V 10% X7R 0603	1
D1	VLMS1300-GS08	Vishay	Red 0603 130° Clear 54 mcd 2 V Surface Mount ChipLED	1
FB1	MMZ1608Y300B	TDK	Ferrite Beads Multi-Layer 30Ohm 25% 100MHz 1.5A 50mOhm DCR 0603	1
P1	1546111-2	TE Connectivity	Conn Shrouded Header HDR 2 POS 5.08mm Solder ST Thru-Hole	1
P1	TS02515A0000G	Amphenol Anytek	2 Position Terminal Block Plug, Female Sockets 0.200" (5.08mm) 90°	1
R1	ERJ-3GEYJ271V	Panasonic	Thick Film Resistors - SMD 0603 270ohms 5% Tol	1
R2, R6	CRCW060310K0JNEB	Vishay	Thick Film Resistors - SMD 1/10watt 10Kohms 5%	2
R3, R7	CRCW06030000Z0EAHP	Vishay	RES SMD 0.0 OHM JUMPER 1/4W 0603	2
R4	CRCW06032K40JNEA	Vishay	RES SMD 2.4K OHM 5% 1/10W 0603	1
R5	CRCW0603120RFKEA	Vishay	RES SMD 120 OHM 1% 1/10W 0603	1
U1	STM32F091CBU6	STMicroelectronics	ARM-based 32-bit MCU, CAN, 12 timers, ADC, DAC & Comm. Interface, 2 to 3.6 V, -40 to 85 degC, 48-Pin UFQFPN, RoHS, Tray	1
U2	MAX14840EASA+	Maxim Integrated	Single Transmitter/Receiver RS-485 8-Pin SO	1
X1	CSTCE8M00G52-R0	Murata	MURATA CSTCE8M00G52-R0 RESONATOR, SMD, 8MHZ	1
PCB + PCBA				1
Item	MPN	MFN	Description	Quantity Per Module

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Have more questions? Please check our main FAQ page and feel free to contact us for any unanswered questions.

Download a PDF version here.

Schematics (PDF)
Hardware Design Files (Circuit Maker, EAGLE)
Source Code (GitHub). Download a pre-compiled firmware HEX file here.
Documentation / Factsheet (PDF)
Projects & Examples: Please check our account on Hackster.io for demo projects and examples.