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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)5 b9 u# Z: j: d4 s3 ?0 Y
- #include <ESP8266HTTPClient.h>9 ~) [# Y" _. ~ X- @7 ^6 R
- #include <ESP8266WiFi.h># s6 ^0 O3 P5 a" Y" ?3 \
- #include <ESP8266WiFiMulti.h>$ C/ e6 w+ p* \- e; Z
- #include <ESP8266WebServer.h>
4 Q: Y3 ~9 n, M" q& s. j0 _6 c - #include <arduino.h>
! P J* Z. Q9 }1 _2 L/ a - ESP8266WiFiMulti WiFiMulti;
_( C! H8 \( A& g2 x! O - ESP8266WebServer server(80);
M* z, L* q' f! W9 V$ p' P1 K - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ ?. P3 V- D# \) e2 I7 e+ D- B - ADC_MODE(ADC_VCC);
I0 v8 `" g5 D& v/ K - void setup() {7 C7 M6 M! H& o4 f9 e
- Serial.begin(115200);( W5 P$ o' X5 a9 C J8 ^
- Serial.print("\r\n\n");# h( x3 m8 H9 I' f: D2 x
- pinMode(2,OUTPUT);1 Y) j; e R5 ]6 F9 h6 V7 C
- // WIFI' ~4 M5 D' @; G: f8 }3 y
- WiFi.mode(WIFI_STA);6 S4 D( D Z; |) e
- WiFi.hostname("Sparkle");# x; x; s- j D! i& ]; ]$ k
- WiFiMulti.addAP("wifi ssid", "wifi password");6 {' W5 s9 g' q2 g, }
- int tryNum = 15;
) ~9 z* H9 j5 j( h" O - Serial.print("Connect WiFi");
1 |+ W1 a M4 R% E0 v - while (WiFiMulti.run() != WL_CONNECTED) {; n8 J' }/ ~* \' g3 Z# i
- digitalWrite(2,0);
- ~% V% z0 k. G, d5 _ - delay(200);$ A8 b- V0 J( L8 f0 |2 f9 v
- digitalWrite(2,1);. O5 j9 H& D3 M( c5 h
- delay(300);
( s' `" M9 ~ A, Z - Serial.print(".");
( Y e# M* ?' S @- k - tryNum--;
: w+ b5 K+ V' T4 W4 H1 e: ?7 ]+ L - if (tryNum == 0) {. {2 A! V% L. H v6 }
- // 1min
0 }$ n) a% P1 r* |' ^ - // ESP.deepSleep(60e6);
E2 G1 p) b: x; N. H1 F3 J3 h - ESP.deepSleep(0);7 |/ J/ Y& d, c* t1 h* ^+ I
- }1 d) L" Z" q/ e9 ]
- }& O6 q2 F- L5 Z; H0 M' u1 p
- Serial.print("\r\n");
! B1 g! F+ o8 _8 ?% a+ g4 v( `1 ~+ W, {1 N - digitalWrite(2,1);
0 @( u) T7 ]% A/ n - Serial.print("IP address : ");( c7 [" {0 W" I+ p
- Serial.println(WiFi.localIP());1 r$ Y7 Z3 q4 y6 Q/ c. S
- server.on("/", HTTP_GET, [](){( a- [ V l' d5 Q6 ~' u2 {
- server.sendHeader("Connection", "close");
+ b$ |7 g% c# _) A9 {; G+ T - server.send(200, "text/html", serverIndex);; l8 c) r4 m+ E w8 c
- });: N4 \! ?5 q3 Y( e
- server.on("/update", HTTP_POST, [](){; R3 S4 v. d) ]$ o6 {5 m
- server.sendHeader("Connection", "close");
: v! M( O) h/ _: f1 T - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! w E; }; K0 F1 J
- ESP.restart();9 R5 K& D, V/ @4 g
- },[](){& B' z( ?- N; w. k# ~' q
- HTTPUpload& upload = server.upload();
0 @+ B9 ~% d6 M u - if(upload.status == UPLOAD_FILE_START){
( g; e! H7 k0 w3 c - Serial.setDebugOutput(true);! x' e6 X6 A% ?/ J6 p
- Serial.printf("Update: %s\n", upload.filename.c_str());
# F6 A/ X7 F% i T. m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 R* F! y* l5 t - if(!Update.begin(maxSketchSpace)){% d1 e* s* A, x6 b7 e
- Update.printError(Serial);
7 r1 D+ C) V. F" K& W: f, x* R - }
/ ]) x, }% W, {) ?# e- N L% a - } else if(upload.status == UPLOAD_FILE_WRITE){
( _6 M; [2 b& p4 n q& t0 D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) s: i9 e3 N6 G - Update.printError(Serial);
( f6 J1 P M6 ]" L2 P - }
# i4 x/ S: O: w; S% Y8 P* C - } else if(upload.status == UPLOAD_FILE_END){5 [: T) Q# L/ r( |2 y
- if(Update.end(true)){
, Y- v& ^: ]3 h" I7 P1 H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ e. A- S+ l6 J - } else {! K6 P. r5 h! Q( \: _; s; D
- Update.printError(Serial); ?+ j& H$ J" M; N
- }4 L5 x f8 \- S8 Q, i
- Serial.setDebugOutput(false);
# B( R$ X1 a+ A( y. A - }
/ \, _6 j) H$ I( W2 X7 _' ^+ p! u - yield();/ h& `5 L* y4 `% |& k
- });
. S6 w4 G& S: b9 c; `& }0 h - 0 g g8 ^$ d* W5 @
- digitalWrite(2,0);
9 k( z. F) I, e3 r3 ] - mainAction();' ^: e: P, A+ L
- if (digitalRead(0)){& k/ {7 }7 P- d0 e- I9 `0 T
- ESP.deepSleep(0);
8 M! Z$ v% P0 N1 m - } else {
+ I* `5 _) E2 m8 y7 [; A \, W - server.begin();
7 I; W1 j3 N9 J - }
- y+ g. g; h: f! ~8 z6 M/ L5 H$ Q v - }, e& N6 V& p) l9 U# a+ p
- void loop() {
! i" ~/ P% z2 G0 I6 P" H" ] - server.handleClient();2 \* b* b5 U& z3 O
- delay(1);
% g! r* u7 n: C$ g- ? - }* l1 H# ~) z0 h! O* Q4 Q! K* l
- String doGet(String url){$ P' j. K& |# Z/ g' e- s
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 i5 j# i# @7 F% \2 x! H0 Y" K7 ~- ]; y - HTTPClient http;
0 c1 B1 i8 p/ _) q% V; C/ C4 d8 ]+ n - Serial.println("[HTTP] begin...");
( g9 a2 F8 }! E1 W! a5 k6 z - if (url.startsWith("https")) {3 B, K x+ L8 p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 `9 S3 ~0 Y' P' a) H4 E
- } else {
; a, @& O) |9 Z# W9 ]) q5 m1 A - http.begin(url);) R. Z' R L! i4 x" e' ]7 V7 S1 `& O
- }
9 o0 d' \' e: J* `8 \1 C2 } - Serial.println("[HTTP] GET...");1 W+ b* k0 V' f5 D% q/ p
- int httpCode = http.GET();
- o- ~& X" p4 E0 a1 Q# M - if (httpCode > 0) {
/ M @: [0 e+ b" R8 K% M; R4 T - Serial.printf("[HTTP] code: %d\n", httpCode);9 K# T$ t: c. {( J# w. s
- if (httpCode == HTTP_CODE_OK) {& M. i& C8 v9 j M8 J r1 b. Q
- String payload = http.getString();7 Y8 d- }: B9 D" _. J8 Y! k
- Serial.println(payload);
) ?* U0 G \- U V, X - Serial.print("\r\n");
- r5 A1 _7 S( h3 E+ l! C - return payload;
8 n! ?& H, I' c7 u - }# d7 k1 S. Q, { m
- } else {' V) Z" ~6 E2 c3 m m& ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",
2 i5 ]3 f& t! F$ z8 b! @ - http.errorToString(httpCode).c_str());
* f/ g- H7 N$ c: L8 t) u - }% X7 T) h) ~1 H, _
- http.end();
' v/ m& k7 v. Z9 ~ - return "";( k9 w, j+ l X- i# V1 G' `
- }
' g7 `4 U( y; L - }7 H5 y7 z2 ^5 A6 D7 }. V- C5 ~6 V0 f
- void mainAction() {' |# E5 c, J0 [: k
- // 发送请求9 U# m! Z5 l2 R. k- {3 A
- doGet("http://google.cn");
1 E- H$ k5 T' k# D5 h - }: V' p6 g4 `6 c. n8 M7 |0 ^
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