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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)
+ g C% H/ C, W/ N5 J# |- #include <ESP8266HTTPClient.h>" g- J& g2 Y) U0 D* G l
- #include <ESP8266WiFi.h>
# s: |: W* }% f. G+ W/ j$ } - #include <ESP8266WiFiMulti.h>+ c2 u. U L) B1 I3 D h0 k% y
- #include <ESP8266WebServer.h>
7 E/ W. N2 u% D! I - #include <arduino.h>
# F/ V& D' f% M% E9 t4 O! } - ESP8266WiFiMulti WiFiMulti;
# E. r+ g8 y3 g. Q2 h+ f - ESP8266WebServer server(80);" y) X# L7 U' ?+ s) U1 Z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( d$ y# {6 c! I5 W - ADC_MODE(ADC_VCC);
; w6 `6 G. Y" T/ ] - void setup() {
$ N2 I+ ^/ y9 g4 h1 Z/ n3 m* l - Serial.begin(115200);! h1 d$ Q4 X1 p% R5 Z" j
- Serial.print("\r\n\n");
) H a( Z$ B# y% } - pinMode(2,OUTPUT);! Z) {: p7 F& g! ]8 B
- // WIFI$ y I1 {% a/ F) ?
- WiFi.mode(WIFI_STA);1 c; V E8 M' X J- Y7 g. f5 M
- WiFi.hostname("Sparkle");
0 Z% O0 x2 A7 s - WiFiMulti.addAP("wifi ssid", "wifi password");! H) t j* V" T! X- t
- int tryNum = 15;3 c2 ^0 C& p& ?! e5 N
- Serial.print("Connect WiFi");$ ?( h/ x$ Q: }: v( E# |2 S$ f
- while (WiFiMulti.run() != WL_CONNECTED) {
) }4 Q( Q' ]! b2 p) U0 u - digitalWrite(2,0);. W' X% \ y& P. E1 r7 F) j$ {
- delay(200);2 [" I5 e9 K! t6 `' d7 [/ z
- digitalWrite(2,1);1 x6 S1 w1 |) A h: i
- delay(300);7 W4 U. Q/ a) d4 ~; ^' e" R
- Serial.print(".");9 D' l# {+ t( h
- tryNum--;; Z3 e' G* I m. G
- if (tryNum == 0) {% [+ b2 K: ~6 X/ ?. s8 W' M
- // 1min
* P( E1 I& R2 d# i1 U7 J4 D - // ESP.deepSleep(60e6);2 e& g) {, t% l; v; \
- ESP.deepSleep(0);2 A" t! _6 j: h5 Z! R' \5 |+ W, [
- }
$ N8 y. Z/ Y' q& e4 y - }
5 [# r& C) i- a$ g2 V: z - Serial.print("\r\n");
9 q; _+ I7 q& h* E - digitalWrite(2,1);9 z1 V( w u. ^
- Serial.print("IP address : ");$ D, a, i6 D/ k# ?$ ?" m( y
- Serial.println(WiFi.localIP());
1 T) X! _3 c( \/ h# @7 `0 c+ \ - server.on("/", HTTP_GET, [](){
2 l$ W v9 ?# _ - server.sendHeader("Connection", "close");1 }6 g% Z/ g4 v' x
- server.send(200, "text/html", serverIndex);
' M: Y% B9 C; L$ [ - });
8 m: ~6 _" N) B3 B* V - server.on("/update", HTTP_POST, [](){. K! @, [7 u+ M) G: Y
- server.sendHeader("Connection", "close");% j* B) w" A" d) p9 S9 y! B7 v9 g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ h- S% d( C3 {# \9 H; y
- ESP.restart();
9 S6 q! v3 c' I0 x3 p - },[](){
' i& l! c: |8 s - HTTPUpload& upload = server.upload();
, M- v0 U3 O4 Z6 ^: F7 M - if(upload.status == UPLOAD_FILE_START){
7 Q% M' H: ~8 ]; d& ^! ^) d - Serial.setDebugOutput(true);
N5 g4 N/ b6 w* l, D1 ^* i - Serial.printf("Update: %s\n", upload.filename.c_str());7 d8 N6 N8 R* _3 ]4 j" n0 A, @9 [
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, e0 C9 a) K5 S( ^& h- D
- if(!Update.begin(maxSketchSpace)){! ]1 U' c/ b! v/ t2 Q1 {/ J
- Update.printError(Serial);# o9 Y" `. N9 o# d/ W. S
- }: B! m9 a! C) A
- } else if(upload.status == UPLOAD_FILE_WRITE){
# D1 G" b d- g) ?6 f3 T6 E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( D/ O j, d1 h, o+ }7 _% _
- Update.printError(Serial);5 q3 i/ |+ Q1 j5 V) Q0 j
- }0 r7 @' P% J ~: H
- } else if(upload.status == UPLOAD_FILE_END){9 r5 Z$ }) P# w Y. Y$ Y
- if(Update.end(true)){
& A0 |7 P" Y' e! [" e6 j1 s w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; `. M3 S6 o" \% B - } else {" I7 H U6 I; U! J6 H8 f
- Update.printError(Serial);4 p$ u3 w. [' d$ O7 D
- }# Y/ f5 X9 X, z- Q* K: D, F2 Q% d. b: C2 @
- Serial.setDebugOutput(false);
4 x3 D& q' g# ?# f) ]% g' D$ a - }7 ?6 M8 X3 {7 v5 f
- yield();
$ k# I. u2 r5 f" Q- }1 p - });
- e. P+ L& h2 ]' k2 b2 |- y' z8 L/ v -
" e* y4 `9 z+ ^/ |% _& b - digitalWrite(2,0);8 M5 G* o; N/ c+ ?- U) Q
- mainAction();' d" j/ U- {* b- q. d
- if (digitalRead(0)){) ^! H b. i0 h- n# w+ b) w/ y
- ESP.deepSleep(0);
1 f' \0 A( u& ^5 T6 N2 Q* G - } else {- ?! z i, G$ s# o% z- f& d, e: h: |
- server.begin();! S# l1 ^( q! J4 _ d5 v! G/ p$ e
- }; m& U/ Z& Y: p5 o1 r2 W3 u- ~ r) N
- }9 D% d- J4 C/ K7 g! Y
- void loop() {- P Q7 P' s: G
- server.handleClient();
q' ] W f( ]3 m% o - delay(1);
1 z: Y7 a* N+ C - }
% L# x4 W% S, f9 E* Q) @: v - String doGet(String url){
. v2 Y% d% I, V3 [$ K! x3 J - if ((WiFiMulti.run() == WL_CONNECTED)) {9 _/ y. n' x R5 z
- HTTPClient http;% E# d1 S( p0 [$ C
- Serial.println("[HTTP] begin...");
% d" g4 l- k: A) m' \ - if (url.startsWith("https")) {2 k3 _6 t3 Q. j6 q" W
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ Z8 U' t" V- q5 w, D9 i - } else {) l+ v/ E& F2 H4 @, O
- http.begin(url);
+ D4 L3 l8 {( F - }
/ y5 |* c% C! k D4 y9 u - Serial.println("[HTTP] GET...");" |! y" G* T2 X
- int httpCode = http.GET();$ i) M2 T4 K* l" I0 _4 s' T
- if (httpCode > 0) {: q# j& T: ?5 K4 ]6 N: A4 g
- Serial.printf("[HTTP] code: %d\n", httpCode);
) l5 R1 j v( g0 ]7 s+ l - if (httpCode == HTTP_CODE_OK) {8 {) k8 s- K7 F4 ]3 \* p
- String payload = http.getString();( p5 e+ Z k4 H' [0 _
- Serial.println(payload);
$ L% \) J1 v% o/ Q" } - Serial.print("\r\n");: G* \3 \) r5 Z: _: D2 I
- return payload;& c* j4 ?; b" c" O4 G# _& [2 e
- }
2 g4 f- }. j0 b: k4 _: ] } - } else {2 T* s& J; p( m* \
- Serial.printf("[HTTP] GET... failed, error: %s\n",! H) v# d( D. O( e
- http.errorToString(httpCode).c_str());- S/ R* x' V1 V- U0 L# j
- }
1 z3 {% \, A' T b, Q& b0 Z+ q - http.end();. @% X* e6 \; P6 [8 \( u& K, H
- return "";
$ [0 b1 \% N; P6 v7 c9 U4 g - }! ?0 H$ b- W4 F* }) H5 E
- }& y$ W" d( u! J4 _- E- G
- void mainAction() {& g( W* ?: r% l' L, o
- // 发送请求
* U/ B3 ]; j% o' J5 | - doGet("http://google.cn");9 O# f- J {: j. L. R8 _/ w# X
- }
* Z* X3 L* v4 N) a' U& ^
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