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How to use set_step method in Lemoncheesecake
Best Python code snippet using lemoncheesecake
preprocessing_test.py
Source:preprocessing_test.py 
...107 """ Test the load libsvm to S3 function. """108 printer = prefix_print("TEST_LOAD")109 timer = Timer("TEST_LOAD", verbose=True)110 if wipe_keys:111 timer.set_step("Wiping keys in bucket")112 delete_all_keys(s3_bucket_output)113 timer.timestamp()114 if not no_load:115 timer.set_step("Loading libsvm file into S3")116 Preprocessing.load_libsvm(src_file, s3_bucket_output)117 timer.timestamp()118 if not check_output:119 return True120 timer.set_step("Getting keys from bucket")121 objects = get_all_keys(s3_bucket_output)122 timer.timestamp().set_step("Loading libsvm file into memory")123 data = load_data(src_file)[0]124 timer.timestamp().set_step("Checking chunk 0")125 printer("Checking that all values are present")126 obj_num = 0127 obj_idx = -1128 client = boto3.client("s3")129 obj = get_data_from_s3(client, s3_bucket_output, objects[obj_num])130 for row in range(data.shape[0]):131 cols = data[row, :].nonzero()[1]132 obj_idx += 1133 if obj_idx >= 50000:134 obj_idx = 0135 obj_num += 1136 timer.timestamp().set_step("Checking chunk {0}".format(obj_num))137 try:138 obj = get_data_from_s3(139 client, s3_bucket_output, objects[obj_num])140 except ClientError as exc:141 printer("Error: Not enough chunks given" +142 " the number of rows in original data. Finished " +143 "on chunk index {0}, key {1}. Exception: {0}"144 .format(obj_num, objects[obj_num], exc))145 return False146 for idx, col in enumerate(cols):147 v_orig = data[row, col]148 try:149 v_obj = obj[obj_idx][idx]150 except IndexError as exc:151 printer("Found error on row {0}, column {1} of the ".format(152 row, col) +153 "source data, row {2}, column {3} of chunk {4}".format(154 obj_idx, idx, obj_num))155 return False156 if v_obj[0] != col:157 printer("Value on row {0} of S3 object {1} has".format(158 obj_idx, objects[obj_num]) +159 " column {2}, expected column {3}".format(160 v_obj[0], col))161 continue162 if abs(v_obj[1] - v_orig) > .01:163 printer("Value on row {0}, column {1} of S3".format(164 obj_idx, col) +165 " object {2} is {3}, expected {4} from row {5},".format(166 objects[obj_num], v_obj[1], v_orig, row) +167 " column {6} of original data"168 .format(col))169 return True170def test_simple(s3_bucket_input, s3_bucket_output, min_v, max_v,171 objects=(), preprocess=True, wipe_keys=False,172 skip_bounds=False):173 """ Make sure all data is in bounds in output, and all data174 is present from input """175 timer = Timer("TEST_SIMPLE", verbose=True)176 if wipe_keys:177 timer.set_step("Wiping keys in bucket {}".format(s3_bucket_output))178 delete_all_keys(s3_bucket_output)179 timer.timestamp()180 timer.set_step("Getting all keys")181 if not objects:182 # Allow user to specify objects, or otherwise get all objects.183 objects = get_all_keys(s3_bucket_input)184 timer.timestamp()185 if preprocess:186 timer.set_step("Running preprocessing")187 Preprocessing.normalize(s3_bucket_input, s3_bucket_output,188 Normalization.MIN_MAX, min_v, max_v,189 objects, True, False, skip_bounds)190 timer.timestamp()191 timer.set_step("Running threads for each object")192 launch_threads(SimpleTest, objects, 400, s3_bucket_input,193 s3_bucket_output, min_v, max_v)194 timer.timestamp()195def test_hash(s3_bucket_input, s3_bucket_output, columns, n_buckets,196 objects=(), feature_hashing=True):197 """ Test that feature hashing was correct """198 timer = Timer("TEST_HASH", verbose=True).set_step("Getting all keys")199 if not objects:200 # Allow user to specify objects, or otherwise get all objects.201 objects = get_all_keys(s3_bucket_input)202 timer.timestamp()203 if feature_hashing:204 timer.set_step("Running feature hashing")205 Preprocessing.feature_hashing(206 s3_bucket_input, s3_bucket_output, columns, n_buckets, objects)207 timer.timestamp()208 timer.set_step("Running threads for each object")209 launch_threads(HashTest, objects, 400, s3_bucket_input,210 s3_bucket_output, columns, n_buckets)211 timer.timestamp()212def setup_test(timer, wipe_keys, preprocess, skip_load, src_file,213 s3_bucket_output):214 """ Wipe keys and load_libsvm if needed. """215 if wipe_keys:216 timer.set_step("Wiping keys in bucket")217 delete_all_keys(s3_bucket_output)218 timer.timestamp()219 if preprocess and not skip_load:220 timer.set_step("Running load_libsvm")221 Preprocessing.load_libsvm(src_file, s3_bucket_output)222 timer.timestamp()223def test_min_max(src_file, s3_bucket_output, min_v, max_v, objects=(),224 preprocess=False, skip_load=False, wipe_keys=False,225 check_global_map_cache=True):226 """ Check that data was scaled correctly, assuming src_file was serialized227 sequentially into the keys specified in "objects". """228 timer = Timer("TEST_MIN_MAX", verbose=True)229 setup_test(timer, wipe_keys, preprocess, skip_load, src_file,230 s3_bucket_output)231 timer.set_step("Getting all keys")232 if not objects:233 objects = get_all_keys(s3_bucket_output)234 timer.timestamp()235 if preprocess:236 timer.set_step("Running preprocessing")237 Preprocessing.normalize(238 s3_bucket_output, s3_bucket_output, Normalization.MIN_MAX,239 min_v, max_v, objects)240 timer.timestamp()241 timer.set_step("Loading all data")242 data = load_data(src_file)[0]243 timer.timestamp().set_step("Constructing global map")244 if check_global_map_cache and os.path.isfile("global_map"):245 with open("global_map", "rb") as f:246 g_map = pickle.load(f)247 else:248 g_map = {} # Map of min / max by column249 for row in range(data.shape[0]):250 cols = data[row, :].nonzero()[1]251 for col in cols:252 val = data[row, col]253 if col not in g_map:254 g_map[col] = [val, val]255 if val < g_map[col][0]:256 g_map[col][0] = val257 if val > g_map[col][1]:258 g_map[col][1] = val259 with open("global_map", "wb") as f:260 pickle.dump(g_map, f)261 timer.timestamp().set_step("Testing all chunks")262 client = boto3.client("s3")263 obj_num = 0264 obj_idx = -1265 n_errors = 0266 obj = get_data_from_s3(client, s3_bucket_output, objects[obj_num])267 printer = prefix_print("TEST_MIN_MAX")268 for row in range(data.shape[0]):269 # row is the row in the libsvm file object270 # obj_idx is the row in the S3 object271 cols = data[row, :].nonzero()[1]272 obj_idx += 1273 if obj_idx >= 50000:274 obj_idx = 0275 obj_num += 1276 try:277 obj = get_data_from_s3(278 client, s3_bucket_output, objects[obj_num])279 except ClientError as exc:280 printer("Error: Not enough chunks given the " +281 "number of rows in original data. Finished on " +282 "chunk index {0}, key {1}. Exception: {1}".format(283 obj_num, objects[obj_num], exc))284 return285 for idx, col in enumerate(cols):286 try:287 v_orig = data[row, col]288 v_obj = obj[obj_idx][idx]289 if v_obj[0] != col:290 # Ensure the column is correct291 printer("Value on row {0} of S3 object {1}".format(292 obj_idx, obj_num) +293 " has column {2}, expected column {3}".format(294 v_obj[0], col))295 n_errors += 1296 if n_errors == 10:297 return298 obj_min_v, obj_max_v = g_map[col]299 scaled = (min_v + max_v) / 2.0300 if abs(obj_max_v - obj_min_v) > EPSILON:301 scaled = (v_orig - obj_min_v) / (obj_max_v - obj_min_v)302 scaled *= (max_v - min_v)303 scaled += min_v304 if abs(scaled - v_obj[1]) > EPSILON:305 printer("Value on row {0}, column {1} of".format(306 obj_idx, col) +307 " S3 object {0} is value {1}, expected {2} from row"308 .format(obj_num, v_obj[1], scaled) +309 " {0}, column {1} of libsvm file".format(310 row, col))311 printer("Min value {0}, max value {1}"312 .format(obj_min_v, obj_max_v))313 n_errors += 1314 if n_errors == 10:315 return316 except IndexError as exc:317 print("Exception on row {0} of S3 object {1}".format(318 obj_idx, obj_num) +319 ", row {0} col {1} of libsvm file".format(320 row, col))321 print("Original data cols: {0}".format(cols))322 print("S3 data cols: {0}".format(obj[obj_idx]))323 raise exc324 timer.timestamp()325def test_normal(src_file, s3_bucket_output, objects=(),326 preprocess=False, skip_load=False, wipe_keys=False,327 check_global_map_cache=True):328 """ Check that data was normal scaled correctly. """329 timer = Timer("TEST_NORMAL", verbose=True)330 setup_test(timer, wipe_keys, preprocess, skip_load, src_file,331 s3_bucket_output)332 timer.set_step("Getting all keys")333 if not objects:334 objects = get_all_keys(s3_bucket_output)335 if preprocess:336 timer.set_step("Running preprocessing")337 Preprocessing.normalize(338 s3_bucket_output, s3_bucket_output, Normalization.NORMAL,339 objects)340 timer.timestamp()341 timer.set_step("Loading all data")342 data = load_data(src_file)[0]343 timer.timestamp().set_step("Constructing global map")344 if check_global_map_cache and os.path.isfile("global_map"):345 with open("global_map", "rb") as f:346 g_map = pickle.load(f)347 else:348 g_map = {} # Map of sum(X), sum(X^2) and N by column349 for row in range(data.shape[0]):350 cols = data[row, :].nonzero()[1]351 for col in cols:352 val = data[row, col]353 if col not in g_map:354 g_map[col] = [0, 0, 0]355 g_map[col][0] += val356 g_map[col][1] += val**2357 g_map[col][2] += 1358 with open("global_map", "wb") as f:359 pickle.dump(g_map, f)360 timer.timestamp().set_step("Testing all chunks")361 client = boto3.client("s3")362 obj_num = 0363 obj_idx = -1364 n_errors = 0365 obj = get_data_from_s3(client, s3_bucket_output, objects[obj_num])366 printer = prefix_print("TEST_NORMAL")367 for row in range(data.shape[0]):368 # row is the row in the libsvm file object369 # obj_idx is the row in the S3 object370 cols = data[row, :].nonzero()[1]371 obj_idx += 1372 if obj_idx >= 50000:373 obj_idx = 0374 obj_num += 1375 try:376 obj = get_data_from_s3(377 client, s3_bucket_output, objects[obj_num])378 except ClientError as exc:379 printer("Error: Not enough chunks given the " +380 "number of rows in original data. Finished on " +381 "chunk index {0}, key {1}. Exception: {1}".format(382 obj_num, objects[obj_num], exc))383 return384 for idx, col in enumerate(cols):385 try:386 v_orig = data[row, col]387 v_obj = obj[obj_idx][idx]388 if v_obj[0] != col:389 # Ensure the column is correct390 printer("Value on row {0} of S3 object {1}".format(391 obj_idx, obj_num) +392 " has column {2}, expected column {3}".format(393 v_obj[0], col))394 n_errors += 1395 if n_errors == 10:396 return397 sum_x, sum_x_squared, n_vals = g_map[col]398 mean = sum_x / float(n_vals)399 std_dev = 0400 variance = sum_x_squared / float(n_vals) - mean**2401 if abs(variance) < EPSILON:402 std_dev = 0403 else:404 std_dev = (variance)**.5405 scaled = 0406 if std_dev != 0:407 scaled = (v_orig - mean) / std_dev408 if abs(scaled - v_obj[1]) > EPSILON:409 printer("Value on row {0}, column {1} of".format(410 obj_idx, col) +411 " S3 object {0} is value {1}, expected {2} from row"412 .format(obj_num, v_obj[1], scaled) +413 " {0}, column {1} of libsvm file".format(414 row, col))415 printer("Original value {0}".format(v_orig))416 printer("Sum(X) {0}, Sum(X^2) {1}, N {2}"417 .format(sum_x, sum_x_squared, n_vals))418 printer("E[X] {0}, E[X]^2 {1}, E[X^2] {2}"419 .format(sum_x / float(n_vals),420 (sum_x / float(n_vals))**2,421 sum_x_squared / float(n_vals)))422 n_errors += 1423 if n_errors == 10:424 return425 except IndexError as exc:426 print("Exception on row {0} of S3 object {1}".format(427 obj_idx, obj_num) +428 ", row {0} col {1} of libsvm file".format(429 row, col))430 print("Original data cols: {0}".format(cols))431 print("S3 data cols: {0}".format(obj[obj_idx]))432 raise exc433 timer.timestamp()434def main():435 """ Run all of the tests. """436 timer = Timer("MAIN", verbose=True).set_step("Running load_libsvm")437 if RUN_TEST == Test.ALL or RUN_TEST == Test.LOAD_LIBSVM:438 test_load_libsvm(LIBSVM_FILE, OUTPUT_BUCKET, wipe_keys=True)439 timer.timestamp().set_step("Running test_simple")440 if RUN_TEST == Test.ALL or RUN_TEST == Test.SIMPLE_TEST:441 test_simple(INPUT_BUCKET, OUTPUT_BUCKET, 0.0, 1.0,442 objects=["1", "2", "3"],443 preprocess=True, wipe_keys=True)444 timer.timestamp().set_step("Running test_min_max")445 if RUN_TEST == Test.ALL or RUN_TEST == Test.MIN_MAX_TEST:446 test_min_max(LIBSVM_FILE, OUTPUT_BUCKET, 0.0, 1.0,447 objects=["1", "2", "3"], preprocess=True, skip_load=False,448 wipe_keys=True, check_global_map_cache=False)449 timer.timestamp().set_step("Running test_normal")450 if RUN_TEST == Test.ALL or RUN_TEST == Test.NORMAL_TEST:451 test_normal(LIBSVM_FILE, OUTPUT_BUCKET, objects=["1", "2", "3"],452 preprocess=True, skip_load=False, wipe_keys=True,453 check_global_map_cache=False)454 timer.timestamp().set_step("Running test_hash")455 if RUN_TEST == Test.ALL or RUN_TEST == Test.HASH_TEST:456 test_hash(INPUT_BUCKET, OUTPUT_BUCKET, ["40189"], 1000,457 objects=["1", "2", "3"])458 timer.timestamp().global_timestamp()459if __name__ == "__main__":...
z_drive.py
Source:z_drive.py
...28# uchar phasecw[4] ={0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09}; # æ£è½¬ çµæºå¯¼éç¸åº D-C-B-A29# uchar phaseccw[4]={0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08}; # å转 çµæºå¯¼éç¸åº A-B-C-D30# DELAY_NORMAL为æ£å¸¸èå²é´éï¼å¯¹äºæ§å¶åå½æ°ä¸ç´æ¥èµå¼ç»delayï¼è°ç¨å½æ°æ¯è¥éä¿®æ¹å¯ä»¥ä»¥å®åå½¢å¼ç´æ¥å¤å¶ç»delay31DELAY_NORMAL = 332def set_step(w1, w2, w3, w4):33 GPIO.output(IN1, w1)34 GPIO.output(IN2, w2)35 GPIO.output(IN3, w3)36 GPIO.output(IN4, w4)37def stop():38 set_step(0, 0, 0, 0)39# 8æ驱å¨ï¼åå40def forward(steps, delay=DELAY_NORMAL):41 for i in range(0, steps):42 set_step(1, 0, 0, 0)43 wiringpi.delay(delay)44 set_step(1, 1, 0, 0)45 wiringpi.delay(delay)46 set_step(0, 1, 0, 0)47 wiringpi.delay(delay)48 set_step(0, 1, 1, 0)49 wiringpi.delay(delay)50 set_step(0, 0, 1, 0)51 wiringpi.delay(delay)52 set_step(0, 0, 1, 1)53 wiringpi.delay(delay)54 set_step(0, 0, 0, 1)55 wiringpi.delay(delay)56 set_step(1, 0, 0, 1)57 wiringpi.delay(delay)58# 8æ驱å¨ï¼åå59def backward(steps, delay=DELAY_NORMAL):60 for i in range(0, steps):61 set_step(0, 0, 0, 1)62 wiringpi.delay(delay)63 set_step(0, 0, 1, 1)64 wiringpi.delay(delay)65 set_step(0, 0, 1, 0)66 wiringpi.delay(delay)67 set_step(0, 1, 1, 0)68 wiringpi.delay(delay)69 set_step(0, 1, 0, 0)70 wiringpi.delay(delay)71 set_step(1, 1, 0, 0)72 wiringpi.delay(delay)73 set_step(1, 0, 0, 0)74 wiringpi.delay(delay)75 set_step(1, 0, 0, 1)76 wiringpi.delay(delay)77# /////////////////////////////////////////////////////////////////////////////////////////78# 4æ驱å¨ï¼direction为æ¹åï¼z_forward 为ååï¼z_backward 为åå79# delay为èå²é´éï¼delayMicrosecondsæ¯ä»¥us为åä½ï¼delayæ¯ä»¥ms为åä½80def step_drive(direction, step_num, delay=DELAY_NORMAL):81 # ååè¿å¨82 if direction == 'z_forward':83 for i in range(0, step_num):84 set_step(0, 1, 1, 0)85 wiringpi.delay(delay)86 set_step(0, 0, 1, 1)87 wiringpi.delay(delay)88 set_step(1, 0, 0, 1)89 wiringpi.delay(delay)90 set_step(1, 1, 0, 0)91 wiringpi.delay(delay)92 # ååè¿å¨93 elif direction == 'z_backward':94 for i in range(0, step_num):95 set_step(1, 1, 0, 0)96 wiringpi.delay(delay)97 set_step(1, 0, 0, 1)98 wiringpi.delay(delay)99 set_step(0, 0, 1, 1)100 wiringpi.delay(delay)101 set_step(0, 1, 1, 0)102 wiringpi.delay(delay)103 # 没æ设å®æ¹åç´æ¥è¿å并æ示104 else:105 print('Z轴没ææå®æ¹åï¼è¯·æ£æ¥')106 return107# \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\108# åå§å设å®109def setup():110 GPIO.setwarnings(False)111 GPIO.setmode(GPIO.BOARD) # Numbers GPIOs by physical location112 GPIO.setup(IN1, GPIO.OUT) # Set pin's mode is output113 GPIO.setup(IN2, GPIO.OUT)114 GPIO.setup(IN3, GPIO.OUT)115 GPIO.setup(IN4, GPIO.OUT)...
z_drive_old.py
Source:z_drive_old.py
...28# uchar phasecw[4] ={0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09}; # æ£è½¬ çµæºå¯¼éç¸åº D-C-B-A29# uchar phaseccw[4]={0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08}; # å转 çµæºå¯¼éç¸åº A-B-C-D30# DELAY_NORMAL为æ£å¸¸èå²é´éï¼å¯¹äºæ§å¶åå½æ°ä¸ç´æ¥èµå¼ç»delayï¼è°ç¨å½æ°æ¯è¥éä¿®æ¹å¯ä»¥ä»¥å®åå½¢å¼ç´æ¥å¤å¶ç»delay31DELAY_NORMAL = 332def set_step(w1, w2, w3, w4):33 GPIO.output(IN1, w1)34 GPIO.output(IN2, w2)35 GPIO.output(IN3, w3)36 GPIO.output(IN4, w4)37def stop():38 set_step(0, 0, 0, 0)39# 8æ驱å¨ï¼åå40def forward(steps, delay=DELAY_NORMAL):41 for i in range(0, steps):42 set_step(1, 0, 0, 0)43 wiringpi.delay(delay)44 set_step(1, 1, 0, 0)45 wiringpi.delay(delay)46 set_step(0, 1, 0, 0)47 wiringpi.delay(delay)48 set_step(0, 1, 1, 0)49 wiringpi.delay(delay)50 set_step(0, 0, 1, 0)51 wiringpi.delay(delay)52 set_step(0, 0, 1, 1)53 wiringpi.delay(delay)54 set_step(0, 0, 0, 1)55 wiringpi.delay(delay)56 set_step(1, 0, 0, 1)57 wiringpi.delay(delay)58# 8æ驱å¨ï¼åå59def backward(steps, delay=DELAY_NORMAL):60 for i in range(0, steps):61 set_step(0, 0, 0, 1)62 wiringpi.delay(delay)63 set_step(0, 0, 1, 1)64 wiringpi.delay(delay)65 set_step(0, 0, 1, 0)66 wiringpi.delay(delay)67 set_step(0, 1, 1, 0)68 wiringpi.delay(delay)69 set_step(0, 1, 0, 0)70 wiringpi.delay(delay)71 set_step(1, 1, 0, 0)72 wiringpi.delay(delay)73 set_step(1, 0, 0, 0)74 wiringpi.delay(delay)75 set_step(1, 0, 0, 1)76 wiringpi.delay(delay)77# /////////////////////////////////////////////////////////////////////////////////////////78# 4æ驱å¨ï¼direction为æ¹åï¼z_forward 为ååï¼z_backward 为åå79# delay为èå²é´éï¼delayMicrosecondsæ¯ä»¥us为åä½ï¼delayæ¯ä»¥ms为åä½80def step_drive(direction, step_num, delay=DELAY_NORMAL):81 # ååè¿å¨82 if direction == 'z_forward':83 for i in range(0, step_num):84 set_step(0, 1, 1, 0)85 wiringpi.delay(delay)86 set_step(0, 0, 1, 1)87 wiringpi.delay(delay)88 set_step(1, 0, 0, 1)89 wiringpi.delay(delay)90 set_step(1, 1, 0, 0)91 wiringpi.delay(delay)92 # ååè¿å¨93 elif direction == 'z_backward':94 for i in range(0, step_num):95 set_step(1, 1, 0, 0)96 wiringpi.delay(delay)97 set_step(1, 0, 0, 1)98 wiringpi.delay(delay)99 set_step(0, 0, 1, 1)100 wiringpi.delay(delay)101 set_step(0, 1, 1, 0)102 wiringpi.delay(delay)103 # 没æ设å®æ¹åç´æ¥è¿å并æ示104 else:105 print('Z轴没ææå®æ¹åï¼è¯·æ£æ¥')106 return107# \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\108# åå§å设å®109def setup():110 GPIO.setwarnings(False)111 GPIO.setmode(GPIO.BOARD) # Numbers GPIOs by physical location112 GPIO.setup(IN1, GPIO.OUT) # Set pin's mode is output113 GPIO.setup(IN2, GPIO.OUT)114 GPIO.setup(IN3, GPIO.OUT)115 GPIO.setup(IN4, GPIO.OUT)...
step_motor_z.py
Source:step_motor_z.py
...28# uchar phasecw[4] ={0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09}; # æ£è½¬ çµæºå¯¼éç¸åº D-C-B-A29# uchar phaseccw[4]={0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08}; # å转 çµæºå¯¼éç¸åº A-B-C-D30# DELAY_NORMAL为æ£å¸¸èå²é´éï¼å¯¹äºæ§å¶åå½æ°ä¸ç´æ¥èµå¼ç»delayï¼è°ç¨å½æ°æ¯è¥éä¿®æ¹å¯ä»¥ä»¥å®åå½¢å¼ç´æ¥å¤å¶ç»delay31DELAY_NORMAL = 332def set_step(w1, w2, w3, w4):33 GPIO.output(IN1, w1)34 GPIO.output(IN2, w2)35 GPIO.output(IN3, w3)36 GPIO.output(IN4, w4)37def stop():38 set_step(0, 0, 0, 0)39 40def forward(steps, delay=DELAY_NORMAL):41 for i in range(0, steps):42 set_step(1, 0, 0, 0)43 wiringpi.delay(delay)44 set_step(1, 1, 0, 0)45 wiringpi.delay(delay)46 set_step(0, 1, 0, 0)47 wiringpi.delay(delay)48 set_step(0, 1, 1, 0)49 wiringpi.delay(delay)50 set_step(0, 0, 1, 0)51 wiringpi.delay(delay)52 set_step(0, 0, 1, 1)53 wiringpi.delay(delay)54 set_step(0, 0, 0, 1)55 wiringpi.delay(delay)56 set_step(1, 0, 0, 1)57 wiringpi.delay(delay)58def forward_4(steps, delay=DELAY_NORMAL):59 # delay为èå²é´éï¼delayMicrosecondsæ¯ä»¥us为åä½ï¼delayæ¯ä»¥ms为åä½60 for i in range(0, steps):61 set_step(0, 1, 1, 0)62 wiringpi.delay(delay)63 set_step(0, 0, 1, 1)64 wiringpi.delay(delay)65 set_step(1, 0, 0, 1)66 wiringpi.delay(delay)67 set_step(1, 1, 0, 0)68 wiringpi.delay(delay)69 70def backward(steps, delay=DELAY_NORMAL):71 for i in range(0, steps):72 set_step(0, 0, 0, 1)73 wiringpi.delay(delay)74 set_step(0, 0, 1, 1)75 wiringpi.delay(delay)76 set_step(0, 0, 1, 0)77 wiringpi.delay(delay)78 set_step(0, 1, 1, 0)79 wiringpi.delay(delay)80 set_step(0, 1, 0, 0)81 wiringpi.delay(delay)82 set_step(1, 1, 0, 0)83 wiringpi.delay(delay)84 set_step(1, 0, 0, 0)85 wiringpi.delay(delay)86 set_step(1, 0, 0, 1)87 wiringpi.delay(delay)88def backward_4(steps, delay=DELAY_NORMAL):89 # delay为èå²é´éï¼delayMicrosecondsæ¯ä»¥us为åä½ï¼delayæ¯ä»¥ms为åä½90 for i in range(0, steps):91 set_step(1, 1, 0, 0)92 wiringpi.delay(delay)93 set_step(1, 0, 0, 1)94 wiringpi.delay(delay)95 set_step(0, 0, 1, 1)96 wiringpi.delay(delay)97 set_step(0, 1, 1, 0)98 wiringpi.delay(delay)99def setup():100 GPIO.setwarnings(False)101 GPIO.setmode(GPIO.BOARD) # Numbers GPIOs by physical location102 GPIO.setup(IN1, GPIO.OUT) # Set pin's mode is output103 GPIO.setup(IN2, GPIO.OUT)104 GPIO.setup(IN3, GPIO.OUT)105 GPIO.setup(IN4, GPIO.OUT)106 107def loop():108 while True:109 print("stop...")110 stop()111 time.sleep(5)...
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- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
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