I had made 2 pieces of Farmduino V1.4 last year and not used them. Now I want to sell them and give away 4 FREE A4988 motor drive modules for each Farmduino.
ebay: https://www.ebay.com/itm/223971065326
Farmduino V1.4 A4
Compatible with Farmduino V1.4.
The difference with the official Farmduino V1.4 version is that the connector pins have been replaced with the more versatile XHB 2.54 connector.
For example, the components in the figure below: X3-X7. P8-P11, P12-P16, X9.
Microcontroller: ATmega2560
Input Voltage: 12- 24V
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 256 KB (8 KB used by bootloader)
SRAM: 8 KB
EEPROM: 4 KB
MEGA 2560 Clock Speed: 16 MHz
Connectors: XHB 2.54 3Pin, 4Pin, 7Pin
The following components are free of charge：
XH 2.54 connectors master(Extra for backup)
XH 2.54 3 Pin: 9 pcs
XH 2.54 7 Pin: 5 pcs
XH 2.54 4 Pin: 6 pcs
metal pins for connections (about 90 -120 pcs)(FREE)
four A4988 components(worth $16) are also FREE charge:
All programs have been written, systems can run normally.
Receive and send data test passed:
Postage needs to be paid by yourself.
The goods are sent from Guangdong Province, China.