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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 l5 y& Q* }3 ]- #include <ESP8266HTTPClient.h>5 Y& ?1 f: @" _. Z0 m1 j. s, w7 u
- #include <ESP8266WiFi.h>
: n9 K7 Z; C' Z; M - #include <ESP8266WiFiMulti.h>' w3 O3 t/ n0 Y5 g: d
- #include <ESP8266WebServer.h>/ E1 Y* r4 S1 p) C8 q/ @
- #include <arduino.h>$ S) i8 v( _; B% o
- ESP8266WiFiMulti WiFiMulti;1 ]$ q) v0 w* |6 G1 d* c: Y
- ESP8266WebServer server(80);
# [& ]0 u, O/ x) O( c5 {; I1 g - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' ^& b3 z! I4 w: c3 ~8 u - ADC_MODE(ADC_VCC);
4 N. Q4 B$ k$ p0 \ - void setup() {
0 E; `; U; T" {2 n$ F- R' M+ r9 _* B - Serial.begin(115200);
. N% J0 f" l+ V* L - Serial.print("\r\n\n");' }' c6 D- w. Z( w/ K; l) _% s
- pinMode(2,OUTPUT);
9 p8 I& h; s C - // WIFI# ], h1 n2 H1 [# f' k. H$ |% h
- WiFi.mode(WIFI_STA);
_7 A3 d. H; [' l" A. o - WiFi.hostname("Sparkle");% x5 v8 |6 V' g6 m6 z
- WiFiMulti.addAP("wifi ssid", "wifi password");) C; O1 J0 P o' o' R
- int tryNum = 15;
( ]' l5 \. P9 W$ E# ]) o - Serial.print("Connect WiFi");
+ z7 U& M- B1 I/ ?/ i - while (WiFiMulti.run() != WL_CONNECTED) {
. M) `. \' Q& M - digitalWrite(2,0);
, q& K4 u( J4 u. h - delay(200);& A/ S) k' I' s. W2 z0 t" I7 j! ]
- digitalWrite(2,1);7 r- {) o. T4 o' S: M# |7 F: E
- delay(300);
' r2 P3 `+ o2 ?3 u. [3 M! D - Serial.print(".");
) G# j# y. e, b1 A3 P4 K - tryNum--;2 w/ E/ m/ Q( F) C
- if (tryNum == 0) {
[! |& C- ~0 { - // 1min" ^6 ^: X4 c- s5 s( L
- // ESP.deepSleep(60e6);
. B" T5 k% i8 h4 x0 S - ESP.deepSleep(0);
; D u& T3 d( @3 L! N+ x: ~ - }$ p8 g3 L/ ^8 O. E* }: J* K$ m+ i
- }$ x( B6 M0 V, q" p& Z3 ~$ N! e
- Serial.print("\r\n");
* _7 O% O, {! ~, x0 H - digitalWrite(2,1);4 c& }9 G1 N7 B
- Serial.print("IP address : ");3 }; C! H( b) @
- Serial.println(WiFi.localIP());& \2 e" Z& s- t$ a
- server.on("/", HTTP_GET, [](){3 D7 |- V9 C! Q1 [3 {
- server.sendHeader("Connection", "close");; a7 s- b" {' r/ x/ q' v/ `! v& K2 w
- server.send(200, "text/html", serverIndex);; l8 L1 r( p/ l0 u+ V$ ?
- });3 n2 f- @6 }4 F! x0 S9 {
- server.on("/update", HTTP_POST, [](){
' Z) t" U- t% n5 V! c7 d0 T2 x - server.sendHeader("Connection", "close");
6 k1 N1 k2 J9 i" |8 N5 i1 Y c - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 ^. e+ e: R! P3 U8 _3 r
- ESP.restart();1 k5 i) h* x0 ~/ z! P' M4 L; W& P
- },[](){5 ~5 j, G4 U8 K
- HTTPUpload& upload = server.upload();
) G, z" {" g0 u - if(upload.status == UPLOAD_FILE_START){
# Q( x8 c8 w5 x - Serial.setDebugOutput(true);
/ j8 |1 Y/ f+ ]3 {5 [: w, p N4 ?5 p - Serial.printf("Update: %s\n", upload.filename.c_str());' K4 m5 F# [+ r, s6 h
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- T; {7 l/ d. u% B$ V - if(!Update.begin(maxSketchSpace)){
; a7 l7 B7 i/ a - Update.printError(Serial);
9 b4 |- D" d" q - }3 J1 _8 c* v( b! x" a
- } else if(upload.status == UPLOAD_FILE_WRITE){
" J5 I* p: k( R0 d- ?# v* q: P - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" D# e% e2 }1 y# m9 {' H4 x$ r; j - Update.printError(Serial);. ?4 j V# i( b' a" V1 C' m
- }5 L( |: T9 s+ m( H
- } else if(upload.status == UPLOAD_FILE_END){
, R2 J$ A4 K) t& y! q1 ] - if(Update.end(true)){ O" @. s6 z( Q+ Y+ N
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& E+ \" b. P' c; O4 A - } else {
, D2 A6 }! D! h1 I# y - Update.printError(Serial);# V; S9 J% O0 B$ f
- }
0 A- j' H. g4 ~0 E* N# B - Serial.setDebugOutput(false);/ S+ |$ R7 [8 L) x) z
- }
- k2 y. L0 V0 l! o/ D7 G: X9 _ - yield();$ x0 k6 u* i4 B# w* m/ L
- });7 b- k( p' `9 \/ r( V, l. M
-
; L6 h( [* a4 U0 H5 ?) c. X - digitalWrite(2,0);
, T/ u: W$ f" \ - mainAction();
" t S! v5 O& c - if (digitalRead(0)){
/ h! Y2 D9 o* Q: n e: H4 Q- b6 _! K - ESP.deepSleep(0);
6 K; f, F, d0 i; U) Q: y - } else {
9 d( N2 Q8 q6 l/ J* Z) P1 D( ? - server.begin();! t" ?" X8 [5 X: Z% X# O* l: \
- }
) ^! f$ m! X) r - }. U5 F1 Y( v7 A: m
- void loop() {1 l& D! y+ M" Z
- server.handleClient();( a8 Y1 Q: f" N) w
- delay(1);* N4 U9 ? k6 S; V8 c$ z8 M, X
- }4 M' ^' S/ l- P' s; B
- String doGet(String url){2 v4 A3 [) y0 C+ Y5 J, j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 l L8 R- D! \1 r - HTTPClient http;
: z9 l1 G7 ~0 \ - Serial.println("[HTTP] begin...");& r- q) W2 ~1 `
- if (url.startsWith("https")) {# P7 @) s" x1 q) U3 {+ E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ m9 n+ _' i1 a
- } else {
7 C5 S. }+ C- x( O' j2 | - http.begin(url);5 \0 H$ W: Q" B ~9 H, w8 g
- }: }5 W6 r, [9 V
- Serial.println("[HTTP] GET...");" l6 O- ^0 a5 R$ H& X7 m
- int httpCode = http.GET();
/ i' N4 }/ s; h& o- y - if (httpCode > 0) {
2 l, t9 x" E, P- B5 S( F0 ? - Serial.printf("[HTTP] code: %d\n", httpCode);
3 q: o& G& k+ L0 P* g6 _ - if (httpCode == HTTP_CODE_OK) {/ A: f. a/ C( s) K0 J3 Z! x$ \
- String payload = http.getString();/ e& `5 d- u6 W5 v
- Serial.println(payload);3 G1 m% x) m$ X
- Serial.print("\r\n");
8 I7 z( z7 Q; s0 z& R - return payload;
5 \) W2 R. H1 @/ Z. \2 i- E. L& o - }: [6 w/ Y$ l# n/ g" Y5 f( \
- } else {! m$ D2 ]$ f. Q% D- O
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 \7 h, a0 y. O6 O, W - http.errorToString(httpCode).c_str());
4 F+ o; E) T6 c/ M& Q, `* K3 x# b - }
6 `3 h* A+ l5 K" r- @% L - http.end();
; b! r3 H, S( S) G- u* ^ - return "";* M, h+ P5 `. L. y( k% D5 L* l
- }, D5 M& a5 e* M: H9 e% Z- Y# V
- }
2 u1 E" `$ q# G6 g/ Q* d - void mainAction() {
# q) p# ~$ ~: M; z, g- E) e - // 发送请求. O2 y& I* P6 K
- doGet("http://google.cn");
; K) g7 E" [( o% O - }, V3 w: e, X6 D" i0 }! }" }
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