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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)* r. T5 @, L$ ^9 d5 Z
- #include <ESP8266HTTPClient.h>
4 H; ]* v T6 T1 E0 B5 P9 t - #include <ESP8266WiFi.h>
1 I; q) c9 a$ o1 a- x+ f - #include <ESP8266WiFiMulti.h>5 t2 o* j+ n- f
- #include <ESP8266WebServer.h>
# E6 F" v4 I4 j( Z0 a9 L( B2 S, w - #include <arduino.h>
# v' a" w. O6 \2 F - ESP8266WiFiMulti WiFiMulti;8 s& m8 j( j$ M, U
- ESP8266WebServer server(80);5 a9 I" y9 F3 m. Q* X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. r, x$ Q2 P( f
- ADC_MODE(ADC_VCC);3 `. ?& ? k5 D9 q0 c2 f
- void setup() {8 A& y$ a2 Y. f, R; t
- Serial.begin(115200);* f5 B4 `- j m; ]
- Serial.print("\r\n\n");5 J; t% ?- p* M+ t
- pinMode(2,OUTPUT);, C. S' r, q' e" }- `
- // WIFI
* E' D( t, G' N& @, l - WiFi.mode(WIFI_STA);: C1 Z& d, ~3 M. }4 V
- WiFi.hostname("Sparkle");
8 j- N2 w& Y E - WiFiMulti.addAP("wifi ssid", "wifi password");
/ D" e' K7 f9 j y5 I - int tryNum = 15;
5 S9 ~7 M5 Y1 A- w - Serial.print("Connect WiFi");
H2 g3 V( w7 w4 ^) _9 l7 d - while (WiFiMulti.run() != WL_CONNECTED) {
$ x. `. j5 [/ f- W! A$ f ~# L% V! y - digitalWrite(2,0);
0 G w k* ~: s& ^ - delay(200);
; B5 X- @4 S6 y, Z! F: `8 v- p9 Z - digitalWrite(2,1);+ T% u- B/ v: A, J: S
- delay(300);! L4 i+ ]( ~2 ~; c" Z! o. g9 {: i* s1 L
- Serial.print(".");
* ~6 `% f7 t" C& _' S# b, | - tryNum--;# ^- |7 p# V5 L
- if (tryNum == 0) {
+ w" c5 O' j: u# n - // 1min
2 _$ Y8 c# t7 [0 Y8 | - // ESP.deepSleep(60e6); i% d8 H6 w) Z9 M
- ESP.deepSleep(0);
0 j9 O. [# n: h; d' f. K - }9 g0 o% u$ a2 o% ]$ k/ r
- }$ X) y9 Z: b3 \# O4 F8 V
- Serial.print("\r\n");- l) o, I5 [; I+ ?( b
- digitalWrite(2,1);- ^. }# E& {& ]/ V+ D- l) x o
- Serial.print("IP address : ");" d! ^# m# K W f' U5 q' Z
- Serial.println(WiFi.localIP());4 N; K6 P- @7 o* j
- server.on("/", HTTP_GET, [](){
& K6 A6 r7 q6 F3 r4 y - server.sendHeader("Connection", "close");* O2 K: p7 a$ M- z' Q
- server.send(200, "text/html", serverIndex);
6 z( S# N' u, k0 _* F5 u7 I7 O - });. ]. B7 Q+ m* I- k* ~& k _7 @ S
- server.on("/update", HTTP_POST, [](){0 D/ z, u, u {
- server.sendHeader("Connection", "close");+ X9 `8 ]$ p `& L7 S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 \+ m% Q% {" r! W* R' Y: [ - ESP.restart();
7 w# P% E1 l: y3 K; i* @6 ]" O - },[](){
2 f! |& X" b/ ^- |- s4 L& m - HTTPUpload& upload = server.upload(); e4 W& S: Q2 i) p6 T% {' P: j
- if(upload.status == UPLOAD_FILE_START){
( K( K H, l; b( s( C - Serial.setDebugOutput(true);
1 r$ A3 Q! c! g9 c) _, W$ ]( _ - Serial.printf("Update: %s\n", upload.filename.c_str());) R- d- C: o. w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 Q: }0 S* S1 P( T! h7 D
- if(!Update.begin(maxSketchSpace)){5 `+ l/ ~& w, m6 n
- Update.printError(Serial);
( j+ k5 e2 d0 V, O, ? - } Y% G5 H; l$ r( z8 M6 V4 k+ G
- } else if(upload.status == UPLOAD_FILE_WRITE){ {; X3 u' b5 m# t- [5 ?! ?
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* U0 P5 s0 l/ D
- Update.printError(Serial);
/ b0 Z2 J- m% x0 i q - }$ u) w/ ^* C: i3 B( D8 g8 N$ y2 ] m
- } else if(upload.status == UPLOAD_FILE_END){
" e z/ e/ F2 ?5 y. g. I# o - if(Update.end(true)){! r2 q N& S+ G- c5 [7 o2 h
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 v: `1 F5 B; Q5 b# H# r* m$ ]
- } else {: n( k0 B3 F* G2 |$ `7 J3 I
- Update.printError(Serial);
3 T% f. o: i+ ?$ u4 l/ Q - }
9 z) u" h- ^9 C, t9 b - Serial.setDebugOutput(false);
1 ]- J E8 r" q5 m( S - }
0 }( Q2 B* r* X: Y3 P5 C, b- g# W4 [ - yield();1 G% ~4 K. L7 m+ d9 {
- });/ u. V( E3 J$ ^" P
-
4 R; X* N" z" l! m5 ? - digitalWrite(2,0);: N; @3 B# x. L% \& ^( n
- mainAction();, R0 \3 Q$ W2 t( W! S8 m) L9 A
- if (digitalRead(0)){
( J+ z, `" I/ m) O$ }: v - ESP.deepSleep(0);5 M. F5 j }* x# a |
- } else {
! Q$ [5 V. G9 O |' Y0 I - server.begin();- A2 m) j8 `$ w1 x7 X6 E2 \7 |
- }
9 B- e, ]' _; [- c - }
. E& ?& Y7 S0 t8 @( z - void loop() {
: M9 z% A$ L( G- C# F; j - server.handleClient();
# L0 Y! H1 W7 O$ X) D7 F - delay(1);
, h0 b! ^' \- `/ O' p; S4 N - }% `7 B* v% O1 T- G1 P2 V& X* [( ^
- String doGet(String url){ v: k+ r1 c5 j: W9 d
- if ((WiFiMulti.run() == WL_CONNECTED)) {
0 g2 M5 }( ?+ Y% s3 Z - HTTPClient http;
: c. d4 ?5 ~, c K9 r - Serial.println("[HTTP] begin...");3 Q) Q: ]. X' G1 @# b7 V
- if (url.startsWith("https")) {# Q; V! }" D5 v& s+ b' W% b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; n$ ]3 a6 B& N% O& p) ^4 R - } else {( g- u6 z0 w: `/ |; w! u
- http.begin(url);
- [, [; D" m5 J0 l - }
( }' P) e7 K. ^. O - Serial.println("[HTTP] GET...");
. z+ s& g- A5 {% z: q y8 y - int httpCode = http.GET();7 f1 e/ N) n/ e, m3 k* `3 G
- if (httpCode > 0) {! P4 y& |/ D0 D' V( @$ _3 W
- Serial.printf("[HTTP] code: %d\n", httpCode);6 W3 ~; i% p% W( W0 d }
- if (httpCode == HTTP_CODE_OK) {% w, E: M: F: n A
- String payload = http.getString();% y: |9 R. G# c: A" o5 G2 _' r
- Serial.println(payload);
$ ?- t. l( k5 y/ `& g - Serial.print("\r\n");2 t3 |- v# c. B. P. V5 j6 A
- return payload;+ R$ p$ H5 j1 K8 V9 x
- }& {# K. Z; \8 p2 M- L
- } else {) \& Q, b1 {' C; ?7 n
- Serial.printf("[HTTP] GET... failed, error: %s\n",
/ b( O4 c- s4 T% E - http.errorToString(httpCode).c_str());
: l: w5 s+ Z7 d% t# U - }) w1 D) B& V$ E6 C/ G
- http.end();
4 K! {! W3 t$ i" _* y/ L - return "";. D$ i1 ~! H3 y2 `+ }+ K( J' ]" B Q
- }6 c% Y1 y& K. s) i) H7 i5 D9 g
- }
4 V$ @7 z5 p" `+ k - void mainAction() {# M/ D; }* B' t2 l! n
- // 发送请求; x# k- o$ I) X0 M
- doGet("http://google.cn");
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