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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)
; N+ }- e' E5 {9 q6 b o- #include <ESP8266HTTPClient.h>2 Q+ B2 A. x* ~3 d8 s" b/ O8 q
- #include <ESP8266WiFi.h>7 u, G9 i& I; r) W, M8 H- K
- #include <ESP8266WiFiMulti.h>
) V; B& g# j }# v( C# p% ]# k9 Y: J - #include <ESP8266WebServer.h>+ F2 I5 V# d3 D+ t, W
- #include <arduino.h>
( Z1 y1 L) u1 z6 f - ESP8266WiFiMulti WiFiMulti;9 G8 T# N1 c: n, }) K
- ESP8266WebServer server(80);
3 g! ^2 P+ k' ], P+ x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 H ^8 ]' ~/ w) m - ADC_MODE(ADC_VCC); V4 C) |. i8 s! _- F% Q
- void setup() {4 ^/ F2 ~. q9 \5 ^, \4 p' \0 D
- Serial.begin(115200);
. A6 o F7 n- H - Serial.print("\r\n\n");& I# ^; x: _. V4 ~0 Z% `' M: i$ Z
- pinMode(2,OUTPUT);) U, C% \, m* n2 J
- // WIFI
|8 L- T8 s& A - WiFi.mode(WIFI_STA);
" u9 M# y+ A' n. F# @ D5 v& } - WiFi.hostname("Sparkle");$ c) d. W& }6 Y( T, r. a0 D) s
- WiFiMulti.addAP("wifi ssid", "wifi password");
5 R# f8 f3 w5 t) c+ _' ^5 c! a4 _ - int tryNum = 15;( S( p1 ^& R! F3 P8 H- D& Z& ^
- Serial.print("Connect WiFi");
$ ?3 H5 t0 G+ ~ - while (WiFiMulti.run() != WL_CONNECTED) {0 w, |) `1 h5 L- h) H; D
- digitalWrite(2,0);
5 [4 {9 u) Z1 f6 J0 y2 X* y - delay(200);
) I7 A/ H3 }. |& s - digitalWrite(2,1);/ A4 W6 M0 \3 `5 b) ~, ^' ]
- delay(300);+ V9 B! i" Z- Q* f7 O* I
- Serial.print(".");; Q! A8 W# R7 X
- tryNum--;
% p! h( Q; B) j" ?0 s) G - if (tryNum == 0) {
3 }' o/ z, G5 Z+ g - // 1min' y- F$ w; T1 a& `4 u+ I- J" M
- // ESP.deepSleep(60e6);5 p3 o$ O% _" \5 R
- ESP.deepSleep(0);3 C7 g& Y/ O3 f w
- }- F0 n' l" ^9 Z( T/ u( g) R
- }
; a+ B) F1 m2 K+ J5 r) {, }: u - Serial.print("\r\n");# \# H( I% }+ O
- digitalWrite(2,1);
5 R$ d' i) E& F& X+ \. W" _ - Serial.print("IP address : ");
1 N6 A: K: z% u' \* J% L - Serial.println(WiFi.localIP());
f" c+ L/ J/ ?, _5 ^ - server.on("/", HTTP_GET, [](){
$ h! J4 C$ k+ R+ ], y/ { - server.sendHeader("Connection", "close");
8 A) A8 k2 L# Q; \* A/ K - server.send(200, "text/html", serverIndex);
- K' N! ]9 ]8 v3 f - });* g9 K% o' o# A7 O& {" X( S! }; K! B
- server.on("/update", HTTP_POST, [](){! T+ G8 \- g3 S x% ~
- server.sendHeader("Connection", "close");
/ m& u9 p' j- m& w" Z) e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 A. L, O; O) L
- ESP.restart();6 T. |) U0 D' f( v
- },[](){
3 `& M: [+ f& x - HTTPUpload& upload = server.upload();
# Y. W2 L; j4 g+ b - if(upload.status == UPLOAD_FILE_START){( n8 V/ q1 v, L# H# w( x& `
- Serial.setDebugOutput(true);. E8 W) ^8 e0 T. V X3 `
- Serial.printf("Update: %s\n", upload.filename.c_str());6 M# a; R# B. `- T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 M' L3 `0 f& ^- N/ b0 Z/ ~
- if(!Update.begin(maxSketchSpace)){9 E# n$ [# Q) {
- Update.printError(Serial);/ |. Z6 A( t4 b L/ ^3 u) s
- }- C- H4 x/ [4 n
- } else if(upload.status == UPLOAD_FILE_WRITE){' z7 s* L: h% S
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; f4 ?0 S2 }7 K1 j' l - Update.printError(Serial);
# V2 z6 O0 {3 {' p2 J - }5 R6 g( n. C7 k
- } else if(upload.status == UPLOAD_FILE_END){% J5 w9 [5 [! f* ]% n- B5 B3 e
- if(Update.end(true)){. Q: k6 d. Z& d5 P; C) w9 q x. e2 b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, g3 O5 J+ L$ L# o: |% m$ [ - } else {, v. i1 Q( g. [5 Z' i; y* x! [
- Update.printError(Serial);
; W! G _, n* y6 i5 H9 n7 j - }' H8 |' y3 `# v- O- s& y3 q$ E# A$ E
- Serial.setDebugOutput(false);: e$ x* D, S) t. }" i& l" Q
- }
/ W2 H) B0 t0 ]- |. H7 W) Y - yield();
0 v5 L( B) O6 M# q - });. i) e8 j8 A( x
- 1 Q) U5 V5 q* A* {2 i. ^
- digitalWrite(2,0);% Z* _4 W4 X4 i4 ^# q( E: B( d
- mainAction();
/ R2 |% }/ D! f. ?2 V+ m5 c - if (digitalRead(0)){, K: w- i0 K/ d" U$ c7 M
- ESP.deepSleep(0);
1 x5 ~& K; ^: w# b - } else {
" ^. `* }. a" a- W& Z1 _' n - server.begin();
, [2 l' u g% w$ g1 K5 o$ k" q8 I - }+ B0 e) j+ y, P. S( a
- }6 b2 h0 P2 |8 W3 B" Q, ^: G% d6 P
- void loop() {3 E, B4 T. T( X
- server.handleClient();8 K1 i$ X# k# {) m! U8 M$ z; Y
- delay(1);/ {: V( N% {- u& _$ N
- }
. c- p( P* p5 Q: U - String doGet(String url){/ ]6 ]+ l* D! K- @! u( L# t9 \
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 i5 i, f W/ W+ g7 \' ^! ?; H - HTTPClient http;
5 \6 Q' x! |) z7 U3 H - Serial.println("[HTTP] begin...");2 A! W2 @& G) {1 ]/ g% p! n& ?
- if (url.startsWith("https")) {
5 L2 [2 e4 M+ Y- v/ u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& r: _, C8 K" M- t" j
- } else {# `: [" e, h+ w% H$ }. {! {3 A
- http.begin(url);2 o3 S- T2 E* X3 w4 I+ l' t, G! f
- }1 l" O4 I! ^/ ?* L* B, U. W
- Serial.println("[HTTP] GET...");
0 V* M, x( o" x9 [6 A1 Z - int httpCode = http.GET();
7 L4 d7 A4 f/ c8 x" I: H - if (httpCode > 0) {
7 H: K8 w- o# ?, D - Serial.printf("[HTTP] code: %d\n", httpCode);) H$ ^4 k q" ?; \
- if (httpCode == HTTP_CODE_OK) { o' K4 a, F1 u- ^( X: u) U8 n; P
- String payload = http.getString();
# m) ]" u- [" l - Serial.println(payload);# h, `: K: n# g6 H B
- Serial.print("\r\n");, j2 e* g9 H- p
- return payload;
, v7 L8 K! d4 ]8 v# ~ - }
]4 U+ e9 E! X - } else {- Y6 x, a% Z1 @
- Serial.printf("[HTTP] GET... failed, error: %s\n",
n$ h! d4 r# a1 c9 z0 v - http.errorToString(httpCode).c_str());
& N7 g. _" n, O- o: `) d - }: G4 C' d$ q9 m1 m; s4 K ?
- http.end();
) U& ]( _& d' ~/ u& W - return "";
) L; L, f8 p0 S1 `0 }9 l1 u - }: y! d9 D8 R! a4 H
- }
' w8 S2 l; l4 G; }1 t - void mainAction() {
* B9 U3 Z4 i& F. L2 k - // 发送请求+ e: ^% G* \1 {. K1 p# x
- doGet("http://google.cn");, h' n5 g% O# a. j9 y
- }. t4 R9 l/ E, ~+ V+ ]
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