Example programs

Plant a row (the starter program)

for i in range(3):
    till()
    plant(Potato)
    water()
    move(East)

Walk back along the row and harvest when ripe

for i in range(3):
    move(West)
    while not is_ripe():
        wait(2)
    harvest()

Full farm loop with a function (needs Functions and a 12-line motherboard)

def tend():
    if is_ripe():
        harvest()
    if not is_tilled():
        till()
        plant(Potato)
    water()
while True:
    for i in range(3):
        tend()
        move(East)
    move_by(-3, 0)

Ruins: loot every crate in sensor range (needs Sensors)

for c in scan_crates():
    move_by(c[0] - 1, c[1])
    open_crate(East)

Duskberries: pick only what's ripe, and remember the count (needs Memory)

picked = recall("picked") or 0
while True:
    if is_ripe():
        harvest()
        picked += 1
        remember("picked", picked)
    wait(2)

Boss: hide while it blasts, hit it while it vents (stand next to the Warden first)

while True:
    if boss_open():
        attack(East)
    elif danger():
        move(West)
        move(East)
    else:
        wait(0.5)

Tend an Aether Lily (needs Horticulture and Agronomy; stand on the lily with 3 different crops around it)

while not is_ripe():
    if not is_watered():
        water()
    if get_soil() < 80:
        spread(Compost)
    wait(2)
harvest()

Ruins: fight anything that comes close (needs Sensors)

while True:
    e = nearest_enemy()
    if e == None:
        wait(1)
    elif e[0] > 0:
        attack(East) or move(East)
    elif e[0] < 0:
        attack(West) or move(West)
    elif e[1] > 0:
        attack(South) or move(South)
    else:
        attack(North) or move(North)