Arachnid

I want to make better tools for electronics makers and hobbyists, and I want you
to help me do it.

About a year ago, I was working on a project with a power supply I needed to
test, and I designed the original Re:load. As it happens, I'm not the only one
that needed one, and the Re:load became my first commercial product, and led to
the formation of Arachnid Labs. The Re:load's hugely popular with anyone who
needs to test a power supply, check battery life or discharge rates, or anything
else that requires a steady current source - especially if they don't have
thousands of dollars to throw at expensive lab equipment.

Arachnid

Archive member included because of file (symbol)

.\CortexM0\ARM_GCC_473\Release\Bootloader.a(cyfitter_cfg.o)
                              .\CortexM0\ARM_GCC_473\Release\Cm0Start.o (cyfitter_cfg)
.\CortexM0\ARM_GCC_473\Release\Bootloader.a(Bootloader.o)
                              .\CortexM0\ARM_GCC_473\Release\Cm0Start.o (CyBtldr_CheckLaunch)
.\CortexM0\ARM_GCC_473\Release\Bootloader.a(UART.o)
                              .\CortexM0\ARM_GCC_473\Release\main.o (UART_Start)
.\CortexM0\ARM_GCC_473\Release\Bootloader.a(UART_SPI_UART.o)
                              .\CortexM0\ARM_GCC_473\Release\main.o (UART_SpiUartGetRxBufferSize)

Arachnid

>>> struct.pack("B", 0x38) + struct.pack("H", 0)
'8\x00\x00'
>>> struct.pack("BH", 0x38, 0)
'8\x00\x00\x00'

Arachnid

CommsLink cl("My device", 12345);

int my_int;

void ioinit() {
  cl.register(&my_int);
}

void loop() {
  while(1) {

Arachnid

#define register(exporter, var) ExportedVariable _exported ## #var (exporter, #var, &var)

Exporter ex;

int blah;
register(ex, blah);

Arachnid

template <typename T>
class Monitored {
 protected:
  T value;
  boolean dirty;
 public:
  Monitored<T>& operator=(const T source) {
   value = source;
   dirty = true;
  }

Arachnid

#define NEXT goto *opcodes[program[pc++]]

int interpret(char *stack, int sp, char *program) {
  int pc = 0;
  static const void *opcodes[] = {&&push, &&pop, &&add, &&sub, &&ret};
  NEXT;
  
push:
  stack[sp++] = program[pc++];
  NEXT;

Arachnid

	switch (GET_DURATION(*pByte)) {
	case 7:
		delay(vel * 6);
	case 6:
		delay(vel * 2);
	case 5:
		delay(vel * 4);
	case 4:
		delay(vel * 4);
	case 3:

Arachnid

typedef enum {
  STATE_MAIN,
  STATE_RECEIVE,
  STATE_SEND,
  STATE_PLAY
} state_t;

void state_machine() {
    while(1)
    {

Arachnid

#define PIN 3

void setup() {
  Serial.begin(115200);
}

void loop() {
  long last = 0;
  boolean last_value = -1;
  while(1) {