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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)
7 }- G' M" d- D" K, o( N9 o' F- #include <ESP8266HTTPClient.h>( k- t1 e4 B: @4 B
- #include <ESP8266WiFi.h>0 [) e' J W5 Y. ?6 E- Z
- #include <ESP8266WiFiMulti.h>6 o% ?4 C( w: m$ t! q+ V! L
- #include <ESP8266WebServer.h>
7 C7 X+ D' Q6 q8 ]( b5 @% e0 z - #include <arduino.h>
7 J$ _* F3 L$ u - ESP8266WiFiMulti WiFiMulti;
: f6 ~5 i0 B7 S - ESP8266WebServer server(80);/ }$ T$ R+ u1 H5 b. S. F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 l f% ]( d. j! m6 ~ - ADC_MODE(ADC_VCC);
( \1 ^( X( a& L* @ - void setup() {! j4 \+ o N0 d4 b5 ?
- Serial.begin(115200);' h9 Z1 M% p y$ Y
- Serial.print("\r\n\n");
$ N9 `$ G& h% t. a( S# J5 t9 @+ D - pinMode(2,OUTPUT);/ L" P: v3 S* g: b7 ?+ k! ?% P8 W* D
- // WIFI2 O. K! V" m. q N9 f8 S3 ]- g5 m
- WiFi.mode(WIFI_STA);
* x2 C3 c1 S. K7 ?; G( q+ i/ _ - WiFi.hostname("Sparkle");
- ^; \( Z7 Z& w2 k. ?9 o" i: { - WiFiMulti.addAP("wifi ssid", "wifi password");
- e' i7 s7 j+ V' p" x( Y9 N+ Q. G - int tryNum = 15;
6 s- P7 V6 ^1 y' g4 m - Serial.print("Connect WiFi");
: h/ d5 P/ X0 F: B2 ^4 C - while (WiFiMulti.run() != WL_CONNECTED) {
$ J1 X+ t( H5 O. {' A/ ]# C - digitalWrite(2,0);8 m _( F9 M8 j+ y- q! k) [
- delay(200);
# ]! T7 v/ ?# K% T - digitalWrite(2,1);
% M& {0 T; {) A8 e# ?3 ~ - delay(300);
# y1 p8 t1 x2 p- _( p - Serial.print(".");
! T+ u+ E4 c7 c( r3 S4 V# s - tryNum--;+ P% S+ ^2 }) A0 |. }
- if (tryNum == 0) {5 {1 k+ a; O4 x. P: S* K
- // 1min
5 T- D, _4 q% I6 t - // ESP.deepSleep(60e6);, g; P2 K O+ J/ M; M: J* I/ h
- ESP.deepSleep(0);
4 E: d; w2 O, _; H" D5 L - }: ~0 I5 y( ?$ e8 F: L' G
- }" I, c; `6 g" ?' T# x9 b
- Serial.print("\r\n");
* i) V' e% o q4 l* o. _ - digitalWrite(2,1);9 c% w9 x3 t: j, ~! r" O
- Serial.print("IP address : ");
! K) B- L7 v h* ? - Serial.println(WiFi.localIP());
3 w! N9 P! K' W H - server.on("/", HTTP_GET, [](){' G2 \9 t6 G; g3 {. |
- server.sendHeader("Connection", "close"); X* h& w7 G4 t. _7 Q3 c
- server.send(200, "text/html", serverIndex);3 ^: X2 A. p% _) M
- });
7 O4 k5 P$ ]" x- k* h0 Z - server.on("/update", HTTP_POST, [](){% l% f, M1 I! A: t. y7 E6 F( z
- server.sendHeader("Connection", "close");3 j7 N% B# }) I0 H- j @& J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 P$ j5 o# m6 t3 n* _5 v/ b
- ESP.restart();3 ?+ |9 ]# r' c6 C$ N& q
- },[](){6 I6 i ~4 j& w( {6 C8 L5 o
- HTTPUpload& upload = server.upload();
# `- ` C8 P: c0 Q! W - if(upload.status == UPLOAD_FILE_START){6 G' { d& [, E8 c) n3 }. S
- Serial.setDebugOutput(true);( M4 E9 n* F- ~2 s
- Serial.printf("Update: %s\n", upload.filename.c_str());! a# Z8 A, G% g6 g3 C- A& q' z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. s) e9 F5 [" R. {/ q2 b1 U - if(!Update.begin(maxSketchSpace)){
7 @3 O9 K% d7 T" q! |. y0 } - Update.printError(Serial);0 V% P) d% }0 C
- }
" w/ K% W& a* e* |# i" c1 t - } else if(upload.status == UPLOAD_FILE_WRITE){
# ~' T" K5 z% z- x- S1 U' @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ V! U; i q/ r - Update.printError(Serial);6 k2 T$ b# C7 ]
- }
9 B; E! f0 [6 Y) p - } else if(upload.status == UPLOAD_FILE_END){
0 ^3 J5 F. M- T" [: y7 v* J& f - if(Update.end(true)){( _& G, o0 o" x/ {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 G) f, o2 [/ o7 v
- } else {, F% D; a, i4 X0 a! N% ~# {+ p
- Update.printError(Serial);
4 g8 k/ |4 K5 |% E - }
7 t$ a# J3 e0 h3 B# o4 S - Serial.setDebugOutput(false);0 Y! _9 o5 ?0 b" D) ^
- }
" j9 G) P% r& [& K! u* R. z- u - yield();
" P& T# R% F; ~ - });
+ B, R: n& F6 N# S. P- { - 9 O2 v. }( |: D6 u9 ^
- digitalWrite(2,0);# H; q' U; q$ Y( J, `
- mainAction();! w" @8 k1 h2 r4 s$ _5 ^
- if (digitalRead(0)){: ^* A; o/ x3 p H3 p1 B4 p* v* `
- ESP.deepSleep(0);
1 F9 ~! E6 v1 U0 c! r2 {4 a - } else {8 g. d& H( Z* T
- server.begin();$ m6 n) M0 ]1 |/ O- R
- }
( k& G6 K$ o8 M6 f - }) r4 I7 T6 e8 u
- void loop() {" w5 @3 l, ]) R P }
- server.handleClient();( [7 w& n1 g6 i& K6 l' o
- delay(1);. x3 Y1 V4 D( X0 N- ^% d6 H: b7 y( ?
- }: X- T6 E9 k* H: q
- String doGet(String url){$ m @9 h' @, W' H; s$ F" \7 e" z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& Z& T: X- }8 v' W - HTTPClient http;% Z5 j6 c! }3 o" Q( o6 g* o
- Serial.println("[HTTP] begin...");
( y( c6 i8 n& Y* o4 C ] - if (url.startsWith("https")) {
# V2 u" Z3 t/ j* T2 U& p! V3 | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 h; S2 I- _6 @$ F/ W) i
- } else {
2 ]% d" l& S$ t; x6 G - http.begin(url);
, B2 S" V8 r' x - }
* \' ^$ y# M6 D* w7 v - Serial.println("[HTTP] GET...");
d$ {5 [2 U2 v. T$ v1 L - int httpCode = http.GET();
5 m# B# G" X4 s6 T0 d4 R - if (httpCode > 0) {
. c$ P# n9 e% {; j1 R - Serial.printf("[HTTP] code: %d\n", httpCode);
. m, u, v* t7 p - if (httpCode == HTTP_CODE_OK) {
: S) s% ~+ v% s; u - String payload = http.getString();
- u; H6 d5 q4 H/ W - Serial.println(payload);. D' V$ K1 n7 B9 _5 G* m) W) V
- Serial.print("\r\n");
q9 A0 L" b) k7 r - return payload;! _6 T. r4 `) y* G# X! A* @" K
- }
' H; ^" y8 U; P) v- e - } else {
1 \5 s2 k4 t( b1 Z0 {: n9 M - Serial.printf("[HTTP] GET... failed, error: %s\n",' K$ a+ u. A" C+ a" q& i' Q i5 [
- http.errorToString(httpCode).c_str()); r- I- ]9 @6 c% R
- }$ z1 @: t4 d: e: [2 E
- http.end();% o9 s+ g# q, Z1 p @0 l
- return "";" {9 ?1 B* t. t) Q* R
- }
' k" a# \8 v' b9 v, k- e) }# _5 \ - }, y. \$ b8 Y$ ^( I
- void mainAction() {) R6 `9 ^$ P5 y$ \. \
- // 发送请求
5 V7 w. f% k- E0 C) ^ - doGet("http://google.cn");
3 Q" |6 b4 D9 h0 I$ [5 R- ~ - }
/ Y2 w0 m- l1 E& F) V2 ]
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