They are both unique in different ways: 1. Outseal can program only Arduino Uno/Nano, the Outseal Nano and Mega, Ldmicro can program a wide range of processors including STM32. 2. LDmicro requires configuration and additional software (Arduino IDE and Atmel Studio) before Arduino boards can be programmed. Outseal does not require those. 3. LDmicro can do a number of low-level programming, Outseal has some easy functions for some modules. 4. Outseal has fixed digital/analog I/O which can be extended with expansion modules, LDmicro I/O is depended on your board choice and can also use I/O expansion modules. 5. Outseal mega (Atmega 128A) is not the same as Arduino mega (Atmega 2560) which has more I/O and memory. 4. Outseal UART is reserved for Modbus only, LDmicro does not have Modbus support yet but has UART instructions that accommodate other communication protocols. 5. Outseal is more suitable for industrial applications, while LDmicro tends more to embedded systems. They are both great applications and it depends on the goal for your particular project. For me, Outseal stands out with its Modbus functions and I can decide what microcontroller to use from LDmicro different brands and models.
