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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): r! b4 \2 r! U" s- U! g
- #include <ESP8266HTTPClient.h>
! u& [9 G/ N7 z z3 Z7 e9 q - #include <ESP8266WiFi.h>! q/ F1 j0 Y) F/ B8 m& T5 J/ @
- #include <ESP8266WiFiMulti.h>' v& f2 H" ^ x* b/ i: x
- #include <ESP8266WebServer.h>
7 N2 M* g) t# L: P2 h* P+ F - #include <arduino.h>, D' d3 ^; y' s( Z, d3 y& p4 y
- ESP8266WiFiMulti WiFiMulti; A( t& T8 c z3 c
- ESP8266WebServer server(80);
) Q* }& ?6 ?' ~! r4 @8 o - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* f$ S6 k+ l* `- q
- ADC_MODE(ADC_VCC);
2 n; A4 T2 o k( W, p$ z - void setup() {9 f9 R, P8 [/ O' l* F
- Serial.begin(115200);0 y1 O4 W: I k, B( ~4 U+ j
- Serial.print("\r\n\n");
+ ?. n6 S8 c& q' Z' S( f& }0 ~ - pinMode(2,OUTPUT);4 i8 H% V/ U9 U
- // WIFI
7 O1 d/ K" H7 v! M - WiFi.mode(WIFI_STA);
& T9 e- U! ?7 | - WiFi.hostname("Sparkle");& s$ G! @% j. L( Z) r1 b. }" K
- WiFiMulti.addAP("wifi ssid", "wifi password");0 l$ ]; a* h1 W% l% N! Y4 J
- int tryNum = 15;
3 T/ g6 B. P* ?1 S7 Q/ J - Serial.print("Connect WiFi");) G# u0 S5 W2 c( b6 }! X5 J. w
- while (WiFiMulti.run() != WL_CONNECTED) {% h4 G$ G6 h* w6 g
- digitalWrite(2,0);
- h- u+ I) R+ w. B+ j. n3 H - delay(200);
) v( a/ A- g9 Z1 X. N - digitalWrite(2,1);
( r0 t ?3 V4 d, a4 Y+ k - delay(300);
( h, ~' |8 w; B, X+ v - Serial.print(".");- }& a3 _/ R. _7 b8 d
- tryNum--;: m1 }. U& d* E5 I/ f4 _
- if (tryNum == 0) {
$ l$ w* c1 ~& n, D9 G - // 1min/ u" C! k! ?4 s- O
- // ESP.deepSleep(60e6);
) ]/ G P' g a7 l% Z - ESP.deepSleep(0);
3 i" a( K5 v V) U - }
' Y! I- G- e1 m2 i! E2 Y2 A: } - }
4 G' ? e- |0 ?8 T - Serial.print("\r\n");
/ V7 N4 a- B. K- S - digitalWrite(2,1);
2 z' j4 H9 I8 `: f9 ?/ n# b! I - Serial.print("IP address : ");
- U0 T% ]8 U8 m: e - Serial.println(WiFi.localIP());
5 u" K8 ]( w6 N5 j# P1 q$ d6 r8 H m0 T2 B - server.on("/", HTTP_GET, [](){1 t' |+ D9 V7 I
- server.sendHeader("Connection", "close");
]9 X8 {. N4 L7 Z7 L9 R9 C7 W - server.send(200, "text/html", serverIndex);
! m% f7 R E% |7 k - });( C/ F5 ~8 Y9 }2 x' w
- server.on("/update", HTTP_POST, [](){
& h$ E S; z1 |' O5 D7 e - server.sendHeader("Connection", "close");3 D# h/ M- o3 M4 Y% ~$ L" e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, D; \+ ^3 X, g- v: S
- ESP.restart();
, ?1 P' L+ u$ p! L. d - },[](){5 B+ h& N# m. U$ S/ n# B/ L* P) z( V
- HTTPUpload& upload = server.upload();
% ?7 B; p' J; Z q! u5 ~ - if(upload.status == UPLOAD_FILE_START){
! M" ^. e$ x2 c/ ^ - Serial.setDebugOutput(true);
- L' u* r5 H+ t$ g: D - Serial.printf("Update: %s\n", upload.filename.c_str());
: o3 @3 \6 Q0 X& v# J* A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ L& M) e& r g6 x
- if(!Update.begin(maxSketchSpace)){
: v2 W* J' I( h# i2 B - Update.printError(Serial);7 U6 E" o0 `$ T& J% Z, X; g
- }
' t1 d. r) @+ y! T9 b) F - } else if(upload.status == UPLOAD_FILE_WRITE){
- y! ]& V# i. N: I! B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; b$ p! P9 t( u - Update.printError(Serial);3 I' f I# M! F% i( X/ M2 Q" C
- }
# Q @5 G% k7 e+ B - } else if(upload.status == UPLOAD_FILE_END){" D B( N, n3 t& D# a+ @) Y
- if(Update.end(true)){4 x2 B0 {. G" w+ {. Z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" l, B& w" a/ X) t - } else {$ G* X* ^# m" c6 _( O
- Update.printError(Serial);. m3 U% b( b4 k' V; D
- }* b5 W$ `4 @" y! @
- Serial.setDebugOutput(false);
8 D& r' W9 x9 B% n. j - }
( v5 V% S) j- h1 I' W2 Y - yield();1 E# ^* w& |. Q+ ~0 e ?
- });- c; o/ B, ], j) U
-
. B+ I' Z9 J$ m7 A7 c0 z& v - digitalWrite(2,0);
% t1 d* L1 N% v& e! v - mainAction();
- x+ `. k% y+ w, P/ ~ - if (digitalRead(0)){% ~( I: O( |* ?) Q! d* ^
- ESP.deepSleep(0);: s) x: ]1 k8 A3 A7 X
- } else {: P0 b% i. y7 c* z/ a. E
- server.begin();: e+ ^" _$ b* D0 I( Z
- }9 i9 |! |6 ^5 o9 _7 @( ^: M, W: V
- }
8 q$ t" T( Y( I G0 n - void loop() {
; G) F, _7 X0 E2 L$ I2 T$ ^; e, i) y - server.handleClient();- ^4 g* k$ Y# w! `' Y; K# _5 B; R
- delay(1);
' v! P9 w$ f4 G# U4 I - }
3 o1 B! z( n" y: V+ |7 b - String doGet(String url){- o& X: N. g6 A; o0 \
- if ((WiFiMulti.run() == WL_CONNECTED)) {( N+ v+ s( v6 b; N$ [
- HTTPClient http;
_5 X9 h3 K+ V - Serial.println("[HTTP] begin...");8 d6 z8 ]: v3 B( |
- if (url.startsWith("https")) {
. R9 s4 K1 U2 l) c; j - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' A! K/ n+ v1 E: o/ L! r' |
- } else { [- V) a9 y) r; O
- http.begin(url);6 B$ C! y" Q, s
- }
! n) {* s6 |4 N) F - Serial.println("[HTTP] GET...");3 j% a) G. J3 k4 a, w3 ~
- int httpCode = http.GET();% B; E# v8 T# I5 z* C" B+ `
- if (httpCode > 0) {# ?% }) ?: h) P( W1 k
- Serial.printf("[HTTP] code: %d\n", httpCode);; R) [6 r( k9 @3 p4 N$ L( B# g; K
- if (httpCode == HTTP_CODE_OK) {
2 e2 u% T9 [/ t, H f! B2 u5 { - String payload = http.getString();
6 F- O: w- n$ i$ v - Serial.println(payload);
* q( K3 O9 a0 I, X$ `1 ] - Serial.print("\r\n");
: W! r# \! p7 z! ?' W: t% k( A - return payload;9 q. b) `, s. `0 z! @
- }
b! w- m6 V7 i* d# e* B% E - } else {2 o' E5 l! U4 ]: _) h
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 c( o; C+ o3 x b4 G2 [ - http.errorToString(httpCode).c_str());- X& b. L/ i4 o1 R* h" \4 x9 u1 ?
- }+ m) J: J" k. Q; n
- http.end();
$ k$ s6 V7 K8 f! k8 { - return "";
8 L3 E% o, L, J. ?& Z0 v - }4 z# Y( R& H. Y( h% R
- }
; b) F5 n. ~( n$ |9 Z6 i& X - void mainAction() {
/ _" R& @( t: g1 [ X - // 发送请求
0 Y b0 m* m! m: \ - doGet("http://google.cn");
- a. ~8 h1 J) r. b - }
& N1 J, B/ Y, } T* b* T3 _, b
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