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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)1 {6 Y1 |3 h. X: z# [
- #include <ESP8266HTTPClient.h>
9 N. D- d* J% M& Z8 ^( Z# u - #include <ESP8266WiFi.h>
1 _) S7 G6 [5 p7 N: V* P - #include <ESP8266WiFiMulti.h>. ^5 y/ e$ Z: G% y) N2 P1 v2 Z; J# a
- #include <ESP8266WebServer.h> G8 P" Q+ D% P/ L9 g
- #include <arduino.h>" |# A: R: ?. ~, Q" I/ D
- ESP8266WiFiMulti WiFiMulti;" o2 B Y4 A4 u' o1 A
- ESP8266WebServer server(80);
4 D7 {8 R8 v, s, Y ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 z( [6 x2 Z, L$ I+ u6 M) G
- ADC_MODE(ADC_VCC);( V& M+ Z; j+ C- y1 k7 S8 f' q
- void setup() {
2 ^* g- V8 J8 n - Serial.begin(115200);3 J" C$ ]5 Q/ }( x' m
- Serial.print("\r\n\n");
$ H1 U( x$ @6 }8 ?" B - pinMode(2,OUTPUT);' v4 ?+ J) H9 o; F
- // WIFI
% e# G" V8 R+ d$ o- B0 P( a - WiFi.mode(WIFI_STA);
8 @6 x& S b+ K/ F+ J - WiFi.hostname("Sparkle");7 Y) ?7 y1 ]2 s. m0 D
- WiFiMulti.addAP("wifi ssid", "wifi password");' F# v: K# ^# \& x. J* A
- int tryNum = 15;# O7 V' i9 s! `5 u. p( O$ U# V
- Serial.print("Connect WiFi");( @3 h/ G% M u' R0 \1 P
- while (WiFiMulti.run() != WL_CONNECTED) {9 E# o0 M6 R: g5 g
- digitalWrite(2,0);! b$ w6 k2 j) e: d! `
- delay(200);- {) U% C( f1 a8 b
- digitalWrite(2,1);
8 r5 X+ q5 q3 B! ?% f, | y - delay(300);9 v# {2 G5 h& ^7 \3 H, _0 @3 O) C
- Serial.print(".");5 T" ?" r, I S% ~6 G3 m+ Q, ~3 A
- tryNum--;9 n( w% w, y% L8 M4 n# c
- if (tryNum == 0) {8 E4 L# z& s3 m+ S" L
- // 1min
" n3 X+ `2 Q; v - // ESP.deepSleep(60e6);
" P8 e, N4 ~" ]& h& i - ESP.deepSleep(0);) x. j6 L# O/ l) E& u
- }
: G" @5 C1 I9 }+ r/ U. W+ m - }) g! [6 J8 F! E5 x" T
- Serial.print("\r\n");
! B! ^. o, K, x- ?4 y. o - digitalWrite(2,1);
0 a5 ` B3 t2 _2 d" o3 f8 r - Serial.print("IP address : ");6 N/ l5 \6 |& s4 d% U% n& f
- Serial.println(WiFi.localIP());: w4 H/ ^5 q2 ^
- server.on("/", HTTP_GET, [](){7 [& j t. H, e; p4 q5 m
- server.sendHeader("Connection", "close");& x* K# X* B2 d8 g2 Z, p! S' g
- server.send(200, "text/html", serverIndex);
( G6 i9 ^! w* K5 A - });
% M# ]% U6 k3 P$ B! f0 i& p1 Z - server.on("/update", HTTP_POST, [](){5 n5 m& e; Z A) f6 A! J
- server.sendHeader("Connection", "close");7 r5 w; N) T5 ^8 ^; `& a" u
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; e$ H# `2 Z" B) e; J: m
- ESP.restart();
* c! c5 R. U6 I x" a - },[](){
& Y, _/ q7 g4 t) S; |9 S - HTTPUpload& upload = server.upload();0 W p. ~' S4 H8 ^% E$ w
- if(upload.status == UPLOAD_FILE_START){: x z4 j7 B' J1 C" Q
- Serial.setDebugOutput(true);
8 k7 y4 a5 r( _: o' Z - Serial.printf("Update: %s\n", upload.filename.c_str());
/ \2 v; i( f' ]- t% Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 r6 U, h1 `4 m9 T, b
- if(!Update.begin(maxSketchSpace)){+ N" G. _( j& y' Q
- Update.printError(Serial);
: J4 r1 H: ] i/ e - }
8 w, O6 D- l1 O# C( P) i. \ - } else if(upload.status == UPLOAD_FILE_WRITE){* l a1 ^' u+ H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 I4 _7 ~8 p" L4 ]. h& O& o
- Update.printError(Serial);
, Y9 I+ s6 }6 _! @! O+ i - }
, w) d) u5 ?6 M" A, Z; Z - } else if(upload.status == UPLOAD_FILE_END){
( \) m- a I( Q+ ` - if(Update.end(true)){
' x6 s) o+ y4 i4 u - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 v" p! _, l& _) V! z, w - } else {# _5 ~/ S9 L" C$ w7 U) a' D4 L" J
- Update.printError(Serial);' y! s3 ~* h; i/ z% a" r
- }) {8 I! N- R0 e% I! @; i$ `
- Serial.setDebugOutput(false);, ~' X" b" N$ }$ w3 J
- }: i" T, O6 n1 c/ a
- yield();
9 T5 {& t/ K" a - });* N9 T4 j& j w1 P- F( `! h% f$ G
-
5 \9 K* U4 C5 L _ - digitalWrite(2,0);
6 D2 M5 i' b7 s* A; \0 Y - mainAction();! ?( ], I* t) p c4 \* B% a* B) |
- if (digitalRead(0)){
1 r/ e: w8 h! b, S& b3 ^8 Y - ESP.deepSleep(0);
. G! a5 b* x. e' h - } else {/ C$ N7 a; F0 ~0 ]( p
- server.begin(); z+ g# b; ?1 u. F T3 |
- } k+ ]7 e9 _: y9 S1 I
- }
" q3 k9 |& J' H; Q3 I1 ` - void loop() { k. `) ~3 Y3 I2 D' V6 \! A
- server.handleClient();' B/ C6 E9 w5 @6 D" ]
- delay(1);# ]/ B0 {& J% K' Q: u" C
- }
1 u, B' n3 U% l6 E( _7 w - String doGet(String url){
4 B' H0 i/ p* s4 }' B, c - if ((WiFiMulti.run() == WL_CONNECTED)) {8 I, s5 ]$ _/ _: D
- HTTPClient http;
" T6 x9 l7 t- J, |: _0 }; I! l, I3 j0 s - Serial.println("[HTTP] begin...");
. t3 C( C! I5 v0 Y - if (url.startsWith("https")) {6 a: ]$ G- E& R' U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 r% c* H! E2 f7 ^( j, z( F - } else {$ o/ W+ q! i: w$ v) P/ U5 D
- http.begin(url);' G1 R7 s& _& d8 g& _
- }/ M; b2 i4 g3 j3 f, K' t p2 J
- Serial.println("[HTTP] GET...");
5 d6 h% p0 A9 y - int httpCode = http.GET();( U$ i/ h; D% |4 }. J S6 Q, k) F' `
- if (httpCode > 0) {
5 D7 t5 b( C' {9 i - Serial.printf("[HTTP] code: %d\n", httpCode);
% j6 K" |( y4 f% T7 f, R( T - if (httpCode == HTTP_CODE_OK) {" d |) |3 n- L5 B
- String payload = http.getString();& ^* } ~9 a3 ]& `/ |% k( Q
- Serial.println(payload);1 c1 O# S8 }5 B; i# s z+ \3 ]4 l
- Serial.print("\r\n");
! @' p$ m/ T' L2 l - return payload;
! O. e1 V& c6 R* d; c8 m - }6 K) d$ F: p7 `6 Y" b8 Z
- } else {* Z0 D+ J3 p/ f$ L
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 i" r- p9 g7 m0 x8 Q
- http.errorToString(httpCode).c_str());
) l; E; j; t& ?( w1 k1 s - }% a; l$ h/ G, {3 c) i! a8 E$ w
- http.end();" T7 `/ V4 c8 ^9 K3 U
- return "";8 U5 q* L; f: I& @ _
- }. O5 u' R* a- M) T |8 n3 p
- }
, z+ G: c4 ~8 Z/ n, |9 R2 P/ d - void mainAction() {: Z9 N j, L3 D: e6 H: X4 i% {
- // 发送请求
3 c) F" u1 H6 q' e" z7 ` - doGet("http://google.cn");5 L' }/ {& E5 P( b4 y7 _
- }
& z `/ _7 U* q
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