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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)
" n9 |0 I: p) B4 e2 O4 {- #include <ESP8266HTTPClient.h>" o; g4 t M2 y9 x6 L4 P: ^
- #include <ESP8266WiFi.h>4 V! D: L2 h$ S9 \ o' D1 c
- #include <ESP8266WiFiMulti.h>
. O' f/ U- Y0 |( f; y! ^ - #include <ESP8266WebServer.h>
- q9 }2 I3 k3 a9 e# y; N - #include <arduino.h>. O) f5 z/ F U* Z. a% s
- ESP8266WiFiMulti WiFiMulti;
' P; `% c; o; ?: k6 I" Y0 p - ESP8266WebServer server(80);
5 _1 [/ q) I; w0 o- H: \- F+ E* G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" Q5 o* ^: C3 A
- ADC_MODE(ADC_VCC);
% x z# Y) c# @3 ^$ B - void setup() {
& m( Q* p' i# g& c- q e+ f1 c - Serial.begin(115200);: {" v4 H0 w5 y5 ~1 C( |) j" r; \
- Serial.print("\r\n\n");
. s- k* O9 |$ O+ _ - pinMode(2,OUTPUT);
# P# o% T, k5 a W - // WIFI
5 F% q3 g, c7 S5 } - WiFi.mode(WIFI_STA);
! E# C' L. J$ A& F$ B: h - WiFi.hostname("Sparkle");' I9 W3 T$ v; [) A$ ?
- WiFiMulti.addAP("wifi ssid", "wifi password");; f8 V6 u* i! @' c
- int tryNum = 15;1 b$ f$ e- b- X4 z3 S! o# N8 g
- Serial.print("Connect WiFi");5 c7 P" [/ B6 C% _4 ~, G" i& Z9 L' o
- while (WiFiMulti.run() != WL_CONNECTED) {; v; h/ o. D% d2 _/ B& l! {+ p; t) p
- digitalWrite(2,0);2 x& g- e/ g/ ?
- delay(200);- P( Q9 K7 [$ b H1 E9 d
- digitalWrite(2,1);& K% o6 x5 ~! g& d
- delay(300);
n5 I' _# j3 d* _6 M" p6 _ - Serial.print(".");) \9 y2 j4 f1 x- a P0 B
- tryNum--;
( M/ K( L! J0 N& { - if (tryNum == 0) {, W4 f& _& J4 F7 t5 |
- // 1min
: a, L3 w3 a0 k V2 t7 Z0 r! Z - // ESP.deepSleep(60e6);
5 Z5 E% j8 K+ ` t, _# o# K K - ESP.deepSleep(0);" M" A0 x/ P- u8 ^% |
- }
/ k: w8 k4 d' l* M ^1 q - }6 h* L4 _8 Z1 Q' w! t
- Serial.print("\r\n");& c# g) L- D) K) |7 x6 z
- digitalWrite(2,1);* R5 Z$ Q+ O m$ N" o2 x
- Serial.print("IP address : ");4 O2 y5 c* }3 }: E; `- M. i0 |
- Serial.println(WiFi.localIP());
. Q, O8 B# ?9 _5 S0 Q( d( O& j9 H3 ~ - server.on("/", HTTP_GET, [](){" v6 L) t: D: U9 A) k3 w- h
- server.sendHeader("Connection", "close");" z7 @. c2 w+ k o7 ?; J3 Y
- server.send(200, "text/html", serverIndex);
5 f# Y, L* u2 k& D- ~2 R - });8 b3 n$ i3 J- E. [& Q7 i2 Q
- server.on("/update", HTTP_POST, [](){/ \/ C' f2 ]! l# ~2 s
- server.sendHeader("Connection", "close");9 O8 e- M3 c& x8 X7 _& u p4 i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* w4 j& S$ C/ F+ Y) x1 G: B* @7 y# A - ESP.restart();
5 X4 t% f$ B; \8 S/ |3 C - },[](){
: |0 j \- B1 b* ? x - HTTPUpload& upload = server.upload();4 ^$ a) r0 e, z% H
- if(upload.status == UPLOAD_FILE_START){. f, w- @# `8 U- F1 O) K9 ]7 @/ C3 Q
- Serial.setDebugOutput(true);7 c% S" e- |& D" A4 u3 x5 E+ e. B
- Serial.printf("Update: %s\n", upload.filename.c_str());' ^) ~9 g9 f6 E& { z( T( [ W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 J0 j: L: j% Y& }+ P! D: F0 s0 ]! e - if(!Update.begin(maxSketchSpace)){
1 o+ G P- |5 O# H* `, ?# X; z9 @ - Update.printError(Serial);! {0 Z; R/ t7 V3 i
- }
: d: x& K3 h; ^* ] - } else if(upload.status == UPLOAD_FILE_WRITE){6 O J8 j' X+ r+ w# s9 W3 W1 P
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 _5 n0 _+ o, ~' c2 |" K. g - Update.printError(Serial);
# M0 h* v; W. ?8 n - }
2 C: R7 c# |% _6 D, r - } else if(upload.status == UPLOAD_FILE_END){
9 E5 U. m- Y" x$ u, [. ^6 Q - if(Update.end(true)){
' j7 ^1 ?. z* k3 A- ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 c% E1 `3 S' T
- } else {4 n8 N. l; d9 e+ v' `5 U
- Update.printError(Serial);
: F# V3 s0 R3 D2 [6 H8 ]) D - }
: q# z1 K i- I1 S! ` - Serial.setDebugOutput(false);( \" ~( U1 W" x" b3 P+ \
- }: M1 t7 R* u6 [$ w- D; w
- yield();
4 X6 Q8 v7 {* t* K% D: m$ ~/ C - });
u# s+ O* r% G" B( Z8 [. C - 6 N0 O3 l7 H/ o
- digitalWrite(2,0);9 f0 h& w; f* K
- mainAction();$ p0 a- G$ I: ]2 [
- if (digitalRead(0)){% y% E9 _6 @' C& [4 v3 L$ `
- ESP.deepSleep(0);
2 T. f$ w9 P/ F- \4 H* L - } else {
; p+ D; g/ L3 W6 p0 r$ _ - server.begin();4 W- V, u) m8 }
- }3 a4 c) f1 d5 |9 |2 H; ^
- }& V- q* _2 O+ Q/ C* K# N
- void loop() {; H, G6 X1 C. |( J1 ~
- server.handleClient();" f7 Q1 i$ s: I0 t3 B* _3 ]
- delay(1);
1 s" o6 W, j! \/ M C7 ~& T/ R - }
: b. p. N$ N; M _! J0 Z& K - String doGet(String url){7 \7 O9 O6 M' q0 Y+ B K
- if ((WiFiMulti.run() == WL_CONNECTED)) {
+ k/ j+ m% f6 q9 m# z8 V - HTTPClient http;
) j% b) c+ a% B/ s1 D$ E) F9 Q - Serial.println("[HTTP] begin...");
. ?( c/ `4 K$ v0 F) u - if (url.startsWith("https")) {# g. J# Z, X8 | D4 y2 H( W
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& n8 d6 y8 G$ F# E5 t - } else {
& ?+ F K. R& j& b0 i3 { - http.begin(url);
6 z, p9 J9 K8 H& _$ i3 T" Y2 m - }9 j8 O& Q" v' |3 h1 b+ q3 C' K# Q) u; G9 p
- Serial.println("[HTTP] GET...");
/ t) O5 f/ C/ v. R' i9 J - int httpCode = http.GET();/ H& H/ _* B. P' o# D1 `$ B
- if (httpCode > 0) {
$ O1 l6 s- f" i/ G3 I4 s - Serial.printf("[HTTP] code: %d\n", httpCode);7 S7 x- \, b8 @" C1 X# @9 u
- if (httpCode == HTTP_CODE_OK) {' O' f9 S7 V( P, \' k" |7 `" C9 b1 ]
- String payload = http.getString();+ F1 n- V' z, q) d7 W Z
- Serial.println(payload);
- Z- ?; V& M8 T5 r/ J - Serial.print("\r\n");
- T9 h# l6 V1 H w - return payload;( s* @$ z- H; Q' O+ @
- }1 k" P: v2 ~0 |/ S7 Y; y* N
- } else {! ^6 D L$ [" p8 V9 u8 m
- Serial.printf("[HTTP] GET... failed, error: %s\n",) z/ s) v$ r# P0 Y/ y
- http.errorToString(httpCode).c_str());
: v8 M/ \1 g6 f" d - }
X. E! a# Z% {4 R% b - http.end();
+ t* N6 T1 H% w+ H( L+ m$ B - return "";" {5 U3 \0 V# v/ I
- }
& L4 I: n' s1 g! r2 z- r, f/ O - }7 u6 |! w- L8 k' y6 o3 ]3 @# L/ N; q
- void mainAction() {
' e2 b& ~% ^2 @, K) ? - // 发送请求
, M+ Y- |5 n2 S; P) {, b) Z - doGet("http://google.cn");7 K! C! L }; I9 J
- }
- k$ g0 [ R* X
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