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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)
2 n& Z- }3 Y+ W7 y9 J: z j, m- #include <ESP8266HTTPClient.h>
# M- i$ `+ r% W+ c3 | @% r - #include <ESP8266WiFi.h>1 u# X- {6 @- e+ u
- #include <ESP8266WiFiMulti.h>& O, f1 M0 ]# C( C" d4 W# a; K- D4 ]
- #include <ESP8266WebServer.h>5 G% k5 j2 O6 l3 I; E
- #include <arduino.h>
: T' L6 }- t) b) N6 G& B - ESP8266WiFiMulti WiFiMulti;, z$ M$ }9 ?8 c0 v
- ESP8266WebServer server(80);
# J& ]- T. p/ F - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 O& `3 ?2 A$ Z
- ADC_MODE(ADC_VCC);
% Y' Z: r" o( E! } - void setup() {, o( W5 B4 B- V6 [
- Serial.begin(115200);/ ~, O( o. s6 |7 ~4 r: {
- Serial.print("\r\n\n");$ U: R0 y( A$ W0 m4 P- r% i
- pinMode(2,OUTPUT);: I0 Y8 N$ |9 Z( m
- // WIFI
( a4 ^; Z5 ?. w: G - WiFi.mode(WIFI_STA);
. |* J* Z6 z7 c1 m! Q - WiFi.hostname("Sparkle");
; v, ?; r, S4 D - WiFiMulti.addAP("wifi ssid", "wifi password");
8 X1 x: b; X. Y+ h - int tryNum = 15;$ P0 ~: T9 A9 `
- Serial.print("Connect WiFi");, r) f$ w$ j' x) Z$ _
- while (WiFiMulti.run() != WL_CONNECTED) {5 G0 p4 P o' L' Z9 J; X
- digitalWrite(2,0);/ q: Y6 k5 \% }& M1 k
- delay(200);
- \6 j, I) Y0 [1 G - digitalWrite(2,1); k' k5 N9 F( _# f
- delay(300);
. j4 B5 o2 K+ @# ^! y8 B - Serial.print(".");
: z+ ~6 `/ \2 _+ ?5 |6 P9 d+ {9 g - tryNum--;
& T% l* s; l0 q/ {. V- t - if (tryNum == 0) {
( H9 ^. O7 R7 J - // 1min
$ V. n$ l/ x% }, _0 | - // ESP.deepSleep(60e6);$ D4 \* j3 f! t+ D, e$ ^6 M
- ESP.deepSleep(0);
x) x6 N% a9 l: _0 k! R4 p - }5 p. ]/ c3 E$ b$ d: A" S
- }$ Z& i; C3 T7 u- _ K% q
- Serial.print("\r\n");4 U" [6 W% e+ k9 E% |
- digitalWrite(2,1);2 `8 `7 K# d2 ?" i
- Serial.print("IP address : ");% H9 [+ d+ S: a c4 S
- Serial.println(WiFi.localIP());
7 X ~9 G$ }' e8 r9 C - server.on("/", HTTP_GET, [](){/ P6 @* Z# r1 R% E6 d; u" y
- server.sendHeader("Connection", "close");
: h! M* _1 M; D# d; R - server.send(200, "text/html", serverIndex);
% O0 U+ k% y& m* a0 N( [( k* P - });5 V! K' ^- m, V+ z; A
- server.on("/update", HTTP_POST, [](){9 V R. M9 V2 l/ O: i
- server.sendHeader("Connection", "close");
9 M0 q; c& F' q4 @& K) G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 [! z% Z- u& d, t8 ^
- ESP.restart();
& x6 c, Y* e0 z$ Z - },[](){
, F) l. I, U1 b; M' x8 e - HTTPUpload& upload = server.upload();
[) s% a) T4 X. A+ u - if(upload.status == UPLOAD_FILE_START){* J4 w: A4 B. V0 ]: f; V+ W
- Serial.setDebugOutput(true);, a8 A$ f r) f7 K* J d
- Serial.printf("Update: %s\n", upload.filename.c_str());0 V6 [- z- k6 v3 i. g7 k) {
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# Z2 d( O- Q9 h k - if(!Update.begin(maxSketchSpace)){
5 R! j8 Z: E+ ~* |" P" K1 G: i9 H - Update.printError(Serial);6 t: u2 v% _1 \" S" i3 }& I& J- {
- }
3 l: g: O9 O. j5 M9 |. x. p8 [ - } else if(upload.status == UPLOAD_FILE_WRITE){
; w! [1 f" _+ \$ t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! B/ A$ r+ h/ ~ B1 j, T
- Update.printError(Serial);
h( u) C0 D# ~2 N) [$ V8 c; p - } c8 b' m2 O7 \
- } else if(upload.status == UPLOAD_FILE_END){. g( s* x7 W' e# z, f
- if(Update.end(true)){: b9 [( s& H* R8 e s, l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 E/ O1 x M. r3 @
- } else {$ B2 B9 g0 @- y" ^
- Update.printError(Serial);. v# `' }# q( a
- }
3 l- \1 B9 N% N ^ - Serial.setDebugOutput(false);# r% q5 _- f! T/ o! M
- }3 A9 W* h5 b" e/ U4 q
- yield();* Y/ R% M; G/ b
- });
/ b% _% U' _; p4 C+ _0 i, U -
7 j! H/ N5 Y, J* y A' z - digitalWrite(2,0);
; y/ ~1 ~( v2 @1 w. K# P - mainAction();
: q8 h. y$ T0 E* r2 R - if (digitalRead(0)){
; U8 F$ j# m8 Q( Z) f. Z - ESP.deepSleep(0);
& s3 f9 b% o: ^; {& q - } else {
0 ?* O; P; l( m- ] - server.begin();$ A: m; g# c0 t0 ?" X1 l" F
- }: b0 E8 p) o( J( K, l5 v3 w/ T, w
- }- V: @2 \+ e5 l
- void loop() {; I6 S3 ], y3 J' j
- server.handleClient();
9 h/ Q+ r1 C1 O - delay(1);! x5 D0 E' q- z
- }
0 L( @$ Q0 s7 C" x4 F7 i; i: {, s - String doGet(String url){* s! \7 {3 W9 v7 l9 c0 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
* A) o/ n8 E* A; x( h - HTTPClient http;3 V" z1 K" M) ^
- Serial.println("[HTTP] begin...");
/ r p, w B* y5 M, p& u/ c - if (url.startsWith("https")) {
; [- C+ ]7 v' Y7 b- {- S3 L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. X3 u. }. g/ R6 Q
- } else {
1 M1 M( T/ h" l% E& ^+ s - http.begin(url);) \+ W8 P1 x( z& Q* K: y
- }
7 p! \4 _" T p7 b- d( n! C8 t - Serial.println("[HTTP] GET...");/ N) L2 |9 A2 n
- int httpCode = http.GET();2 K. M, M0 _( n' z7 t
- if (httpCode > 0) {
9 B. e# `7 R. q/ X/ E1 ? - Serial.printf("[HTTP] code: %d\n", httpCode);
& x. ^& u9 ]6 V K' j, }& N - if (httpCode == HTTP_CODE_OK) {
; \2 G! L" h$ w7 `, c6 z - String payload = http.getString();
* f: L" ^& M, s3 H: {- v3 } - Serial.println(payload);8 ~0 w2 S3 p: c+ X/ q% g
- Serial.print("\r\n");& F6 ?: j9 C' x T# F& D+ v- m
- return payload;; @5 _& q' I5 b
- }
8 F0 }3 p' E: n - } else {
. I9 r5 E7 r5 T6 ^# I- H6 U$ R - Serial.printf("[HTTP] GET... failed, error: %s\n",4 `- P' z$ i3 l
- http.errorToString(httpCode).c_str());0 q. z4 O. P% X( d- w9 x
- }* }# d) j' f% D. z& U1 Q3 |
- http.end();
$ x; X |# g% O$ e - return "";
( q4 R2 C1 W W8 [# | - }
+ K- U. h, |+ w7 C" F3 F - }& L! a' ?$ K; G7 g9 D
- void mainAction() {
4 `) N3 P( P, k& ^* @$ x% `4 |( }2 z4 | - // 发送请求
" n1 H$ e" `; w7 Y$ }' L- I% e - doGet("http://google.cn");
7 l3 a) |4 i# r o: v w% B - } O5 T2 z' g+ H* `" h+ H( ?
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