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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)
8 c+ y" S* Y: q" T. n' F4 o- #include <ESP8266HTTPClient.h>
L6 z+ }, T* e( h2 Z" V - #include <ESP8266WiFi.h>2 [9 F& G% P* f q- N0 a- T+ O
- #include <ESP8266WiFiMulti.h>
/ x6 ~# a$ N( B- M - #include <ESP8266WebServer.h>; g2 D% ~ _* ?7 g) ~3 H: D% I
- #include <arduino.h>7 e0 }3 P* P+ l. l3 D
- ESP8266WiFiMulti WiFiMulti;
' {9 u8 y. E0 m: f+ k6 l% _0 m - ESP8266WebServer server(80);
: k ?, b: D/ ~% c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 O* l8 H5 ~+ `: M8 M - ADC_MODE(ADC_VCC);
3 `" h% X0 ?* w' b - void setup() {$ c Z8 z9 Q* H# n4 N2 B
- Serial.begin(115200);
8 i: b+ h1 E7 z& W; p - Serial.print("\r\n\n");3 M3 X. h$ Z& c8 c7 i; H% B9 u- h
- pinMode(2,OUTPUT);
/ h. h# o; w! b% W# m& B& Y) T - // WIFI
1 P) e, `4 B$ H7 ~, w - WiFi.mode(WIFI_STA);
* @/ j1 U9 g; ~* \' ?5 e+ c! t" M - WiFi.hostname("Sparkle");
$ ]5 v" `# \; p+ Z$ a+ t$ q - WiFiMulti.addAP("wifi ssid", "wifi password");5 N0 U6 \, q! |1 X0 \! ~
- int tryNum = 15;5 B4 N' L0 N! b$ M, P9 y- o- d
- Serial.print("Connect WiFi");4 Z# x, Q8 l; J0 P r% K
- while (WiFiMulti.run() != WL_CONNECTED) {
, K+ s% _; U! o0 v: T/ I) U - digitalWrite(2,0);
2 d: j+ f- e4 q5 X - delay(200);
" _3 [, t5 T& @5 y0 b, o - digitalWrite(2,1);: y9 u" y3 ^. O9 U
- delay(300);
0 {- L9 S# T* E2 V6 {0 | - Serial.print(".");3 q3 I8 |1 ]- ^% Y& P7 E' |
- tryNum--;
3 ]% S; A6 z% G% m7 |- p: O9 p% _ - if (tryNum == 0) {
: i0 _" J( v* R7 t; E$ j - // 1min* K B" s k0 V+ N+ x( c
- // ESP.deepSleep(60e6);
( J J! k! N0 ?# G8 i) B4 B3 h - ESP.deepSleep(0);
# o( ~% g& G' |+ ^9 @ - }' ~3 ?7 H* B# g6 |7 q; t
- }. t2 k! j- E8 W
- Serial.print("\r\n");9 B$ N3 g, |# W- S# ^$ X7 V
- digitalWrite(2,1);
+ K; v' r* E% C4 ? - Serial.print("IP address : ");6 Q* d. s; s2 [( [' T
- Serial.println(WiFi.localIP());
h3 _. p+ R# F% [ x! d+ j - server.on("/", HTTP_GET, [](){4 {% |% k% |# U! H
- server.sendHeader("Connection", "close");
) T5 u" O \ [; \ - server.send(200, "text/html", serverIndex);5 c1 A* C9 e. E3 p" Z, u
- });
1 t2 E" n! n! n) y; H0 _8 I1 n - server.on("/update", HTTP_POST, [](){/ R6 k6 n5 z9 x5 w
- server.sendHeader("Connection", "close");
+ S$ K& v; [/ }! [3 g- {, P6 i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% W r. P* E) W" X: c0 c) g
- ESP.restart();
/ U" w- C, y1 e9 n. I2 @. m - },[](){; S3 V1 W% i) q7 `8 `2 U1 @ e# q
- HTTPUpload& upload = server.upload();
Y" g( \+ T& j( d+ T$ K0 o# x3 ?: o - if(upload.status == UPLOAD_FILE_START){4 {, g9 }7 x6 d# s, c
- Serial.setDebugOutput(true);% i6 x# n: p4 z ]5 D
- Serial.printf("Update: %s\n", upload.filename.c_str());. ~4 V- |: y" v
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 }% F3 N4 O, h" @! q, K: W" d. X
- if(!Update.begin(maxSketchSpace)){
9 k2 {7 t5 } o- _3 {* f - Update.printError(Serial);1 e& w( L+ m. l7 C; k
- }
( Q$ S' Z% t5 u2 T5 d' k# P - } else if(upload.status == UPLOAD_FILE_WRITE){4 R" h* u7 i; k' `) C" c) M% ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! E1 a. w$ ?, T- b$ p# N8 J - Update.printError(Serial);
' d9 \ F# Y& Z4 a - }
/ e- ` L3 ?& ]) V% { - } else if(upload.status == UPLOAD_FILE_END){
5 n2 j$ u) ~* |$ _3 `# Y O - if(Update.end(true)){2 @# ], S% T, d. F
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 c A$ x5 J! ^/ P8 T) k/ h: D
- } else {1 v7 \, { z; {5 y# m# s, z
- Update.printError(Serial);
! z# D8 F& p0 ` p! c& P8 U - }% Q7 a: ]$ \# }; x& d. F% y2 W
- Serial.setDebugOutput(false);8 i6 B* N' T# v. f; j7 f
- }
, o9 x" k) W k2 D - yield();
6 m+ f; { Z ? - });
$ s* L$ S5 ?3 H- z -
& n% ~5 T" U- c7 F* z2 H/ ? - digitalWrite(2,0);( B4 g" A. r7 k" V. m/ Z
- mainAction();, h- ^) I0 ~$ l, L! v. R9 Z% w
- if (digitalRead(0)){
, p/ U7 D6 e" Y0 a - ESP.deepSleep(0);+ c) S3 ]9 v0 g* l2 L, |6 O
- } else {
( \+ D+ @9 K' y; N5 \ - server.begin();
4 e8 t/ I z5 b/ [5 C - }
7 s8 ^/ Y+ p7 ]- d& C. y; w; d - } N, ]" U( d% _4 v" @8 [
- void loop() {
6 Z$ V% D( N. W" S. ?+ M/ W F - server.handleClient();2 w7 Y9 C8 |6 S" s7 y* b
- delay(1);
, I8 Z8 C" G. |- `' \" J% ~. T$ F - }
( R' j" A* Y. p- n8 X* H" X - String doGet(String url){& F j f0 f( s2 P+ W+ E0 R
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 h6 ?: ^; N! C4 I* ~ f0 ^ - HTTPClient http;0 x3 s' z5 Y. i: W: R/ p
- Serial.println("[HTTP] begin...");
5 X5 ~" O1 a, J- w' C - if (url.startsWith("https")) {7 Q( W8 r: `5 d4 }4 |7 p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ T5 y: W' Z8 A8 P2 F) K7 L - } else {
0 |+ x+ o1 c2 z7 _( Z - http.begin(url);
6 X* L' T1 g; w' [+ i. V4 ?$ L - }7 y6 ] }# H& x9 J3 F
- Serial.println("[HTTP] GET...");
1 n3 w t' G+ W - int httpCode = http.GET();
& Q% r# Y2 w. X2 ^6 {, Q - if (httpCode > 0) {
5 l) z( z4 P+ o. S - Serial.printf("[HTTP] code: %d\n", httpCode);
% o8 B- U* N' ~7 P, V* j - if (httpCode == HTTP_CODE_OK) {+ m$ ]4 } y8 ^/ A3 ^& a, D4 V
- String payload = http.getString();; d) N6 f* U8 w& ]2 f n& {" n
- Serial.println(payload);- V! e* Q8 x- |" v1 F
- Serial.print("\r\n");
; y4 F4 h5 ~# R9 z/ s0 M# h4 M8 u - return payload;# R- F/ K$ j3 R9 X2 h( z
- }8 F7 y1 ]- T: c( y$ s- m8 a
- } else {
& P6 U% S4 d# T: N% D - Serial.printf("[HTTP] GET... failed, error: %s\n",# H0 @* w( K7 ]6 t. @! r E- C3 _
- http.errorToString(httpCode).c_str());
( ~6 }* p4 d9 j/ S$ L# m - }
2 s) u1 e5 i6 l% Z4 }) L$ ? - http.end();
% D& t. {& b6 M% n - return "";
2 {4 e2 N+ Y4 s! R$ ? - }6 h; p+ i3 [1 E: l1 u
- }
7 V7 Q# D& k& y - void mainAction() {
" e* ]2 v; E& X - // 发送请求9 O( K+ L) d. L- ]
- doGet("http://google.cn");
) Y* u1 n( b7 ~( f% i - }
& O3 I3 _" r, H$ j- H/ d" Q* w
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