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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)
. [" f0 ?2 E- B( {" a( _1 a! e9 ~- #include <ESP8266HTTPClient.h>
$ Z m$ X% e. R$ T* B+ e - #include <ESP8266WiFi.h>$ D" c* u' {. l1 N9 A4 G# S: ]
- #include <ESP8266WiFiMulti.h>8 d5 I. [; c! K5 {: l
- #include <ESP8266WebServer.h>4 @$ [+ m' N1 H8 [
- #include <arduino.h>/ @, w) u1 i$ `5 o1 E
- ESP8266WiFiMulti WiFiMulti;
. ]+ \- H* V% W! o7 H& T - ESP8266WebServer server(80);. j' p! J; B6 b) X$ j
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 ?* g& y1 A5 G F) ^4 S2 T
- ADC_MODE(ADC_VCC);
# W0 n: g v* \- [; M$ ^ - void setup() {/ g/ A# r: Q, C. M$ o; I
- Serial.begin(115200);. W; y6 ^5 L3 l) j, n
- Serial.print("\r\n\n");8 {, x( p, B) D
- pinMode(2,OUTPUT);
+ l2 o# V9 m* a - // WIFI% a8 |; B! |8 {
- WiFi.mode(WIFI_STA);# V5 |8 g. m5 o1 c
- WiFi.hostname("Sparkle");; y3 p: G: d8 L
- WiFiMulti.addAP("wifi ssid", "wifi password");
" v8 }8 L* F5 I7 d+ `1 D& y - int tryNum = 15;0 a$ n* S5 g6 x& m
- Serial.print("Connect WiFi");6 B+ m' W- ~2 E) P1 t. D2 ~, j% K
- while (WiFiMulti.run() != WL_CONNECTED) {9 w$ f) C( z4 W1 a8 S
- digitalWrite(2,0);
, A' X" }2 s8 S$ c! y O - delay(200);
+ @, {5 T' B2 C+ p- D- [; h - digitalWrite(2,1);# V: I( a! |8 s: ?' l; |
- delay(300);, D+ i5 B0 {) i
- Serial.print(".");7 W' |9 g1 k. c) D$ G
- tryNum--;
3 e; F8 Z- j/ S - if (tryNum == 0) {6 y/ `. z# H0 a' s7 M. ~
- // 1min
' w% v( t$ x) ]& Q& V - // ESP.deepSleep(60e6);' J8 r) p9 q3 W1 G
- ESP.deepSleep(0);/ @% c9 L9 H" v0 p& r1 t2 I$ `6 }
- }, l& r5 c) }6 M2 l& {) W
- }
4 M0 Q6 X" [; O$ R8 U1 f - Serial.print("\r\n");$ l1 o' ~$ T5 z0 l( [
- digitalWrite(2,1);$ o: i# j# q3 K! k
- Serial.print("IP address : ");3 \4 ^$ D |' _9 ]
- Serial.println(WiFi.localIP());3 M9 o. x; E6 ~& I5 @1 l" j
- server.on("/", HTTP_GET, [](){
2 o5 Y, w( O" ^' L - server.sendHeader("Connection", "close");
+ [! u6 S: k; w; o: J) B - server.send(200, "text/html", serverIndex);
]" n" V( a8 _! W* U# q - });4 e p+ Q+ m4 z7 {* M0 C) a& ]
- server.on("/update", HTTP_POST, [](){1 N( G1 N8 L+ a7 a
- server.sendHeader("Connection", "close");
% x! K8 N% L" e- y. Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' p/ S3 g, T, p& {- `3 N0 J
- ESP.restart();
0 X) P6 i# A% w7 V - },[](){& X( k5 ]) F4 s7 l
- HTTPUpload& upload = server.upload();
3 w$ @. h! }$ V7 H% m5 t/ S4 t - if(upload.status == UPLOAD_FILE_START){
2 o. x% X; y1 q& R3 K9 e9 ]3 Y" j' | - Serial.setDebugOutput(true);( X7 C2 K- h4 s3 R" T4 Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
+ g. E) \4 r: ^0 c7 z3 z* } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 l) g2 x7 T: P" X3 q6 R - if(!Update.begin(maxSketchSpace)){& W2 D3 @' [6 [+ Z% V' L+ m1 B
- Update.printError(Serial);
& _. Y( v7 @6 h- F - }; K4 g0 T2 Y7 X1 w6 i) _
- } else if(upload.status == UPLOAD_FILE_WRITE){- w( C$ Y5 H N* i7 i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ v" q* g" v: H" ?9 |4 N0 i - Update.printError(Serial);1 `6 y, x% s6 ]/ N$ E% C
- }( o: w3 N' A! Y, \6 q
- } else if(upload.status == UPLOAD_FILE_END){
1 c! R! b" J7 s% ?7 _ - if(Update.end(true)){0 p+ }/ {" s6 J5 n! c$ O
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 Y% f7 @2 b' e: g9 A, o - } else {9 D( c$ z. x0 \# o$ p! y+ f
- Update.printError(Serial);, d6 r) l% z% I6 b
- }& C% s. C' D! S- v! [7 y8 `" S( }
- Serial.setDebugOutput(false);
5 k% h$ @2 R0 a: J! t/ E - }
; G$ |$ ?6 M1 s V4 L1 } - yield();
. K n ~% P( [6 j( { - });
% p, \0 ^, r" Y* z -
; X( E' X" e8 Z; _; n( f - digitalWrite(2,0);- X. `: r0 F- M* V ?
- mainAction();: g( a( V/ p2 C0 p' x! M
- if (digitalRead(0)){
7 M) o' {( l& |# m' Q8 {: I# a - ESP.deepSleep(0);
) w4 b% j$ q( g m1 Z - } else {7 C2 F# o9 V3 t& R$ [
- server.begin();
+ Z6 b9 K5 ^5 w4 w# l1 G - }) c" f0 C5 @$ e& b
- }0 \2 G- r6 v0 o. P t2 s
- void loop() {5 c( y: Q& t+ _* Z
- server.handleClient();
+ c; j, R, m/ N* B - delay(1);# L9 M% X$ r- [% \& ]
- }3 `* b- b0 q3 @& W
- String doGet(String url){, p8 \0 e$ k4 J
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& s2 X' Z6 E. X: Q - HTTPClient http;, a! ^+ y7 p" v- w! l- t7 l0 m' X8 I* Z
- Serial.println("[HTTP] begin...");8 h' f3 ^/ k' Y4 {8 z: z
- if (url.startsWith("https")) {
. I9 m4 l/ l# d7 A9 c6 R* F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; S4 T6 n2 u# h E( h
- } else {
" N7 C5 @2 Q. Y. [8 D4 G M; }# J8 [2 i - http.begin(url);
, v7 X, ~3 _+ J - }2 Z' p4 {. _- r Z# S
- Serial.println("[HTTP] GET..."); }5 L1 H/ F& |8 j
- int httpCode = http.GET();8 U9 S2 Z# q& b( {1 q
- if (httpCode > 0) {
& z2 V, K9 I5 t9 ^ - Serial.printf("[HTTP] code: %d\n", httpCode);2 R& H" i" q2 ^$ ~
- if (httpCode == HTTP_CODE_OK) {
2 C, P7 b- e2 J - String payload = http.getString();
8 L# n+ G- N) b- c - Serial.println(payload);
1 `6 H) U9 Q0 ~. ?- L - Serial.print("\r\n");' t" f- \6 V- H& x# r4 r) W
- return payload;
; | h* x; c B) M - }7 x% y- x# c4 B3 o# c3 \* g
- } else {. L, ^! G1 Z( w( J2 ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 f( ?% j- ?9 j/ i8 r6 O' l
- http.errorToString(httpCode).c_str());9 v. w* H W9 _- K1 z: l1 f
- }3 ]' W3 k3 q* a
- http.end();# ~4 n1 h! e7 @- |9 u# x' y
- return "";+ J# m) h6 X3 U
- }
, V5 a1 D! A1 b. v$ U E) {3 [ - }4 |# D3 i/ Z6 g) e0 r, D* H- W+ T+ J
- void mainAction() {' S/ [/ r' @- E* _ h/ ^7 x
- // 发送请求5 Q, w v3 U) D. ]
- doGet("http://google.cn");: M6 S' v, G' p4 ?7 Z# a
- }
7 |5 c* S* I& S" D* @
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