Remove resistor divider from examples and connections

Author: arduino12

README.md

@@ -13,7 +13,6 @@ A simple library to interface with RDM6300 RFID reader.
 * RDM6300 module with matching antenna.
 * 125KHz RFID tags.
 * Microcontroller (arduino, esp8266, esp32...).
-* Jump-Wires (Resistors of 1K and 2K if you are using 3.3V based microcontroller).
 
 ![rdm6300_connections](../master/doc/rdm6300_connections.png "rdm6300_connections")
 
@@ -26,5 +25,5 @@ A simple RFID to serial reciver example can be found at:
 * ```bool update()``` - Updates the internal values by reading from the RDM6300, returns true on tag detection, must be called repeatedly!
 * ```uint32_t get_tag_id()``` - Returns the last tag id read by ```update```- can be called only once after ```update```.
 * ```bool is_tag_near()``` -  Returns whether a tag is currently held near the antenna- can be called many times after ```update```.
-## enjoy!
+## Enjoy!
 A.E.TECH

doc/rdm6300_connections.png

@@ -16,16 +16,13 @@
  *     | GPIO-01 | TX      |         | This is TXD0, connect it to GPIO-02 |
  *     | GPIO-02 | D4      |         | This is TXD1, connect it to GPIO-01 |
  *     | GPIO-03 | RX      |         | Leave it unconnected for flashing   |
- *     | GPIO-13 | D7      | TX      | Via voltage divide / level shifter  |
- *     |         | VU (5V) | VCC     |                                     |
+ *     | GPIO-13 | D7      | TX      | TX level is same 3.3V as esp8266    |
+ *     |         | VU (5V) | VCC     | The rdm6300 must be powered with 5V |
  *     | GND     | GND     | GND     |                                     |
  *
  *     * GPIO-01 to GPIO-02 is for debug terminal output.
- *     * You must divide the TX out of the rdm6300 to the 3.3V levels,
- *       I used the following resistor divider:
- *       GND--<2K resistor>--GPIO-13=D7--<1K resistor>--TX(rdm6300).
  *
- * Arad Eizen (https://github.com/arduino12) 08/05/19.
+ * Arad Eizen (https://github.com/arduino12) 08/05/19, 09/06/19.
  */
 
 #include <rdm6300.h>

examples/esp8266_hardware_uart/esp8266_hardware_uart.ino

@@ -2,13 +2,12 @@
  * A simple example to interface with rdm6300 rfid reader.
  *
  * Connect the rdm6300 to VCC=5V, GND=GND, TX=any GPIO (this case GPIO-04)
- * Note: for ESP* or other 3.3V based microcontroller,
- *       you must divide the TX out of the rdm6300 to the 3.3V levels,
- *       I used the following resistor divider:
- *       GND--<2K resistor>--GPIO_2--<1K resistor>--TX(rdm6300).
+ * Note that the rdm6300's TX line is 3.3V level,
+ * so it's save to use with both AVR* and ESP* microcontrollers.
  *
- * Arad Eizen (https://github.com/arduino12) 23/09/18, 08/05/19.
+ * Arad Eizen (https://github.com/arduino12) 23/09/18, 08/05/19, 09/06/19.
  */
+
 #include <rdm6300.h>
 
 #define RDM6300_RX_PIN 4

examples/read_to_serial/read_to_serial.ino

@@ -1,6 +1,6 @@
 {
   "name": "rdm6300",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "keywords": "rdm6300, rfid",
   "description": "A simple library to interface with rdm6300 rfid reader.",
   "repository":

library.json

@@ -1,5 +1,5 @@
 name=Rdm6300
-version=1.1.2
+version=1.1.3
 author=Arad Eizen
 maintainer=Arad Eizen <https://github.com/arduino12>
 sentence=A simple library to interface with rdm6300 rfid reader.