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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)
0 r7 Z/ I; N. U* t4 r- #include <ESP8266HTTPClient.h>
; o/ m% m9 I) ?# G9 |1 ^ - #include <ESP8266WiFi.h> q: ^! j( q- K( L5 z5 P. I
- #include <ESP8266WiFiMulti.h>
0 M) x; {! x4 x$ l. l* I - #include <ESP8266WebServer.h>' C) M3 a. ~7 s- M: ^( B% U
- #include <arduino.h>, ^6 }& j# B; |2 T
- ESP8266WiFiMulti WiFiMulti;% J i! I. `; k% E# [) k1 M) _
- ESP8266WebServer server(80);. u! E- H( 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>";: A( V" u+ J A- \) N7 u- A; w- P
- ADC_MODE(ADC_VCC);
* E0 {; v% U( v+ m) ?8 Y) k - void setup() {1 P0 g3 t& p9 j, I* ~- Y
- Serial.begin(115200);; H( e$ C: d4 L$ K; K# i
- Serial.print("\r\n\n");2 K0 R2 z* s$ Q* |: k# t0 l2 y( O
- pinMode(2,OUTPUT);) {! Z* D9 f: ]$ X$ k
- // WIFI
& W( N% h6 V* Y% \ - WiFi.mode(WIFI_STA);
- u- q; @7 e$ b+ g8 k/ u8 _/ i - WiFi.hostname("Sparkle");& V# }0 u, r4 a9 N' q+ K
- WiFiMulti.addAP("wifi ssid", "wifi password");
" C" _: j+ T2 N - int tryNum = 15;3 J, K8 y! P7 B6 a( T
- Serial.print("Connect WiFi");
% p! p! | W) N3 r2 N/ R: ]- v - while (WiFiMulti.run() != WL_CONNECTED) {8 @6 G# @7 }# t/ R+ T
- digitalWrite(2,0);5 T6 T5 A, Q, J
- delay(200); v6 g, Y; j4 s1 K! |
- digitalWrite(2,1);, y) ~ x9 t% N9 z# f
- delay(300);5 h: z; ]" {/ B* ?( l; K5 l
- Serial.print("."); @& [, e2 J6 F% w* E1 v
- tryNum--;6 U- @& ^+ P8 h
- if (tryNum == 0) {9 f* d* ~% T C9 ^0 W' j
- // 1min- h- s$ C" L- K1 @
- // ESP.deepSleep(60e6);
. N( c' G- q4 {/ T7 f - ESP.deepSleep(0);. N" l: N V3 |9 \0 k2 o$ a9 b
- }
; b( [! R9 J( }0 h3 A - }
$ \7 Y F, F: i/ f; w! a - Serial.print("\r\n");! I0 @6 C$ ]+ U( t8 Z
- digitalWrite(2,1);3 B) k: t- g1 \- Y. v0 O9 I
- Serial.print("IP address : ");
% ^: O0 e }1 u: e: m9 c - Serial.println(WiFi.localIP());
- V( J3 c8 Z' W' @9 I0 A j8 l) p - server.on("/", HTTP_GET, [](){
0 ~8 C* X2 y; m- A3 F) j! ] - server.sendHeader("Connection", "close");% t/ B a& h1 k3 ?, M2 u& U1 y
- server.send(200, "text/html", serverIndex);
4 ]' k8 b7 l8 S6 d% C - });
7 i! h( ]& d( C/ i - server.on("/update", HTTP_POST, [](){, M, R, k3 ]5 r: H! |
- server.sendHeader("Connection", "close");
2 O) C% Y! B! W4 t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# ^1 k9 N1 f; ~ e1 M' d
- ESP.restart();
9 R7 j4 z5 | w0 h3 Q$ ~ - },[](){. b' }0 F+ O2 o# v7 l
- HTTPUpload& upload = server.upload();" G3 L$ a5 D# t8 I* T5 C
- if(upload.status == UPLOAD_FILE_START){: j. f/ }2 X' a! r |2 K s+ `. Y+ \
- Serial.setDebugOutput(true);
% u- f' D3 S- j- d8 i, B8 f - Serial.printf("Update: %s\n", upload.filename.c_str());3 n- g4 b- g- m+ R3 d5 [4 ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ J8 p- G; C/ v0 n' ~$ g - if(!Update.begin(maxSketchSpace)){' K3 \6 f8 ~7 B9 ]/ F2 ~
- Update.printError(Serial);' ~5 P) B5 i; f# N& Q! R4 _
- }4 u5 n1 V5 d0 _
- } else if(upload.status == UPLOAD_FILE_WRITE){
& v1 z* t# O1 w) [ i( z& j% x! o - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, Y1 _9 @6 E2 V2 _2 a9 H5 l+ j
- Update.printError(Serial);
1 v" U5 V) x3 |, N& B - }
" J2 W" Z1 c6 B! D - } else if(upload.status == UPLOAD_FILE_END){3 l' k/ d" P% P n1 j$ S" Y
- if(Update.end(true)){
/ v% X5 w9 o7 @' D0 z. J! c - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* T4 V: U7 r4 ^; t) @ - } else {7 x6 H& }6 n$ ]4 N! ?7 U
- Update.printError(Serial);) M j& ?* n6 r! }* O" a
- }
* o' W1 x( u# `/ @* d2 z5 G" u - Serial.setDebugOutput(false);
7 c( N2 u2 Q/ ~, p$ Y3 a1 e - }% r8 U, U! i. ?; w" ]
- yield();5 Y" K6 `$ q+ E3 c
- });; ~; D# ` I$ j. u* a
- & B0 {! g$ [1 N5 _9 J
- digitalWrite(2,0);
8 h: C7 t/ X( U+ R7 ^7 H M) g - mainAction();1 X# x* k+ Z7 X) @# ]+ T0 q d( @
- if (digitalRead(0)){: _; e: H$ O# p8 ?% q8 X
- ESP.deepSleep(0); z* `3 V: s/ l k o* e6 ^9 b, y
- } else {3 M0 I( i! t, z6 E! L) r4 J
- server.begin();5 y4 V9 S; _3 c
- }
) S5 }0 I. s- b - }( p6 B7 h+ b8 }2 N$ @& s8 I
- void loop() {3 [6 f1 z: M5 X( D. z5 T$ V
- server.handleClient();3 Z; T. Q: e, t9 {0 \# W
- delay(1);8 o' z, V+ Y7 l0 O; D* z; z z+ z
- } a! B+ N% M2 C2 W# A! r8 g6 D/ B$ w
- String doGet(String url){
/ X5 w' f( U: Y - if ((WiFiMulti.run() == WL_CONNECTED)) {7 Q# K' \3 r, h
- HTTPClient http;
+ w5 X3 O! O/ } - Serial.println("[HTTP] begin..."); d2 m" l, H# T. n
- if (url.startsWith("https")) {
8 p( t y, l5 k0 b* `9 X - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" O" r2 W$ J# Z, O* P( q, k8 | - } else {
( S* C J. i T5 h: Z) g" z - http.begin(url);
& p w; B+ ]9 O3 b - }
4 y: K2 ~' I3 A# @+ u; i: ] - Serial.println("[HTTP] GET...");- ^1 I, m1 x' B5 e
- int httpCode = http.GET();4 F; D; o" ^2 i2 o$ q) H; f
- if (httpCode > 0) {, ?6 B) q2 y2 \+ ?% W
- Serial.printf("[HTTP] code: %d\n", httpCode);4 u( T! R8 C; v
- if (httpCode == HTTP_CODE_OK) {( s) K. {& @8 \: A$ {. T
- String payload = http.getString();
; U' m9 L2 l$ Q) Z3 Z3 @7 P4 ?7 I - Serial.println(payload);% h' R) q& h& p3 u7 |7 d5 p0 c
- Serial.print("\r\n");1 ~) n& U/ C" S" u4 _8 E1 C
- return payload;" @) c! n; d9 {9 O8 J+ j( ]. r
- }
7 f4 v) Z# Z! O b' \1 Z - } else {
( Q) U: {% z/ {. E, _ - Serial.printf("[HTTP] GET... failed, error: %s\n",
; r/ S1 [/ ]; ]* z6 z - http.errorToString(httpCode).c_str());) e$ j) P9 G0 [& \
- }
9 `! w2 A) D ^2 y R1 Z( \ - http.end();0 e" P1 p8 H' w4 t( ]9 U
- return "";
S/ `* S1 r9 u0 y - }3 F! I' W0 j7 L" b3 v2 u
- }
# Z. e) ?( P: ?: p& N+ s. ? - void mainAction() {
* B5 N) a I0 ~& U. D - // 发送请求
4 ~8 X( C" C" v3 V - doGet("http://google.cn");/ [2 D, E; t- p8 d
- }" Z( Q# z& c! h0 _* F& j- j8 f
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